UPMS Users Manual
Contents
1. ZIEICIECYC YCICCYCYZICCIC CYZICICICIC Z E seem Set Constant Totavones Checkm uncheck al Figure 16 The Flow conditions report shown in Figure 16 displays all the Flow type cuts within the current model Click on the box in the Display column to view it in the Display panel The Select all option allows you to select every condition in the report This is useful when converting large numbers of cuts To deselect any of the selected cuts Hold down the CTRL key and left click that row When you have selected all the boundary conditions pressing the set button at the bottom will change those cuts to the currently displayed boundary condition at the bottom center Pressing the Check All and UnCheck All buttons will check and uncheck the Display box of every cut The columns of the reports can be resized and reordered as well To resize them move the mouse cursor over the division between the column headers When the mouse cursor changes to a double ended arrow you can drag the division To reorder the columns simply drag the column header left or right The other columns will move to compensate 25 Translation 0 1 v Zoom 0 1 v Conversion Factor 0 0254 X Figure 17 Figure 17 shows the Model Parameters dialog which allows you to set the model reference measure Also the Translation and Zoom factors for the Display panel can be set here When you select any factor2. Block FacellMin v H Select Opposite Select Opposite IMn rFace Cuts rIJK Limits Cells 1 Jafe Jzei kijso kzem r Destination Porous wall 2 v Save Options AJBuilder3imyprojectspab3d33ipabgui PAB3D mode Figure 9 Boundary Conditions Panel The Boundary conditions panel Figure 9 allows you to change the boundary conditions for any cut Note that unlike the Flow Solver and Viscosity panels there is no Save Block Options button in the Block Selection control Instead this button is placed at the bottom of the panel It highlights in red when multiple blocks are selected as a reminder to press it to commit changes to the blocks The boundary condition combo box just above it is used to assign boundary conditions to the block face and cut in the source 20 sub panel Note you will not be able to select the Not Defined condition since UPMS considers this to be an error If you select a patched condition the Destination sub panel will activate so that you may choose the connected block and face The source limits can be given any value but UPMS ignores values larger than the maximum and minimum limits of the face The minimum value is normally one The maximum value is displayed in parenthesis next to the second parameter for each direction However if you have exceeded the limits and try to export the model a dialog explaining the e
3. Files Grid Boundary C onditions Initial Conditions Solution Methods Analysis Specific Information Analysis Results Figure 2 UPMS Master Record Structure the interfaces may be such that their form function or interfaces cannot be guessed Consequently we have emphasized modular interfaces and flexible architecture The proposed system design is illustrated in Figures 1 amp 2 System User Interface The system interface is composed of the workspace screens pull down menus tool bars context sensitive help and online user manual The interface s screens uses clear natural language descriptions labels and instructions to communicate with the user The dialog boxes also provides the available choices to the user in combo boxes or list boxes for the user to select Data is validated during data entry The expert system operates in both the UNIX X Window environment and Microsoft Windows environment employing the industry standard interfaces of the Java computer language The expert system guides the user through the input procedure and prevents from making improper inputs The choice of the Java programming language provides highly portable object oriented code UPMS supports commonly available graphics systems such as MS Direct X Unix X and OpenGL DATA VIEW PANELS Data View panels present the user with a well organized set of forms with which to view and modify the model and it s solution parameters The panels w
4. 5 0 0 1 ibc i2d itrp 0 0 0 ivrt istat sigl sigu gam itre 3 0 0 0 2 5 1 4 0 nprfile 0 The UPMS has no control in setting any of the following sections of the user cont file for PAB3D code l Spec Cont 2 Surf Cont 3 Tran Cont and 4 TimeSetp Cont TLNS3D Code The UPMS does only set the parameters for the boundary condition values for the TLNS3D code All the other parameters are set to default values UPMS grdfmt fstrt fasave fplot cpplot 0 000 0 000 50 000 1 000 0 000 flev fgrids fmgtyp fstop 2 000 2 000 1 000 4 000 fcyc fcpout fcnvout 50 000 0 000 1 000 50 000 0 000 1 000 gitr 1 gitr 2 gitr 3 gitr 4 gitr 5 1 2 2 2 2 gitp l gitp 2 gitp 3 gitp 4 gitp 5 0 0 0 0 0 cflf hmf vis2 vis4 zeta 6 000 0 000 0 500 1 000 0 500 cl c 2 e3 c 4 e5 c 6 0 25 0 16667 0 375 0 5 10 00 qfil l qfil 2 qfil 3 qfil 4 qfil 5 qfil 6 29 10 00 10 00 10 0 0 beta 1 beta 2 beta 3 beta 4 beta 5 beta 6 10 00 056 00 044 0 0 smpmn smpmx smpmxt vepsn vepsl cau enteps 0 010 2 500 3 500 0 300 0 300 0 000 1 000 cflc hmc vis0 smoopic smoopjc smoopkc 2 000 0 000 6 000 0 300 0 300 0 300 rm rey l al yaw roll i2dfl 0 840 1 158 3 060 0 000 0 000 0 000 gamma pr prt suthc tref iturb ipatchg 1 400 1 000 1 000 0 000 460 000 2 000 0 000 xref yref zref sref cref scal 0 000 0 000 0 000 0 531 1 000 1 000 fprec cfls ubmin upk alpha delta ubfil 0 000 3 748 1 000 1 100 0 000 0 000 1 000 feng epsf pty ttj fjet ptjopfs ttj
5. Porous wall temperature 2 Constant wall temperature 2 K Polar Periodic I Polar Periodic J Polar Periodic General Symmetry Constant static values 1 Constant static values 2 Constant pressure 1 Constant pressure 2 Constant Mach 2 Constant total values 2 Farfield 2 TLNS3D CFL3D Extrapolation First Order Symmetry about X Zero Order Symmetry about Y Zero Order Symmetry about Z Zero Order Symmetry about X First Order Symmetry about Y First Order Symmetry about Z First Order Constant total values 1 Fan downstream Fan upstream CFL3D TLNS3D General symmetry Singular Axis Half Plane Singular Axis Full Plane Singular Axis Partial Plane Periodic in Space Constant static values 2 Constant total values 2 Free Stream Constant Enthalpy Entropy Pressure Radial Equilibrium Pressure Sinusoidal Specified Pressure Ratio The default procedure for handling a disparity such as listed above should be to display the value as Not defined in the Data View However the original condition should be listed for clarity to the user in the undefined condition dialog 7 Adjacent face conditions in PAB3D mode target the destination face CO conditions exist but assume the target face which our process would have to calculate On any transfer from CFL3D to PAB3D the system should set the unmapped items to default values In the case of Factorization The Global setting should be set to the setting of th
6. cuts can be displayed by one of two mechanisms select the cut in the boundary panel and it becomes the focused cut which is always displayed The second 14 method uses the boundary condition reports If the checkmark in the column labeled Display is selected that cut will be displayed Application Reference This manual describes in detail the UPMS interface in PAB3D mode More PAB3D features are currently supported and require more explanation CFL3D and TLNS3D modes differ from this explanation and some of these differences are noted where appropriate TLNS3D mode only has the boundary condition panel and CFL3D mode Figure 3 File Applications Preferences Tools Display panel Flow Type Current K Thin Layer v Diffusion terms Panel Viscosity 2 Equation Modified JL v Viscous Model Turbulence parameters 0 001 Min Turb Intensity 0 100 Min Turb to Laminar Visc Ratio LR S wau Integration SameasNS v Spatial Accuracy K e F k p 7 Wall boundary e No Compressibility v Compressibility SSG 1 x Stress Model d33pabgui PAB3D mode Builder3imyprojectsipab Status Bar Main Application Window 15 Block Selection Flow Set Selection and configur ation The UPMS main window is shown in Figure 3 The general elements are labeled in the diagram The title bar is used to move the window around on most operating
7. from the combo box the rate of motion for that action will change bye the factor you have selected Multiple selections are compounded So for example to slow down the zoom rate by one hundred times select 0 1 then select 0 1 again This will change the rate by 0 1 0 1 0 01 ZiT sda 17 3 FT maha 17 4 ifm sda 17 5 ifm ska 1 E ifm sda 17 Toute gEa B 37K aan i SU Humber ETE _ Ma Turbulence latansity EM aig stu EM Angina Attachojdagi UE Sickest Az ka cisecj 1400 Patio of gacie Hama Cay Prom i EJ reer ects pah MATT pa MARID mele Figure 18 Displaying blocks is performed with the Block Viewer dialog as shown in figure 18 To open the Block Viewer dialog select Configure View from the Tools menu To display a block click on it to highlight it and press the button labeled Redraw Multiple blocks 26 can be displayed by holding down the Ctrl key when clicking on the blocks Again you must press the redraw button when you have made your selection aa Gi a IE highlight here Press to choose X m 0 Ksam Files of type All Files w Cancel Figure 19 Changing the Working directory By default UPMS looks in the current working directory to open project files It is best to use separate directories for different projects however To change the working directory select Working Directory from the P
8. grid and building the display objects When finished the Display panel will show the grid as seen in figure 11 Notice the axis display in the lower left This feature is not available on Windows NT Several of the cuts have been rendered in shades of blue brown and red The colors indicate the boundary conditions assigned to these cuts In the figure you can see two cuts which are mirror images of each other but one is solid blue and the other is red mesh These represent the currently selected cut in the Boundary condition panel which is a patched condition The solid 22 blue cut is the source and the red mesh cut is the destination The green lines show the edges of the individual faces Sautukunairi Humber sata Add Bata Glock Tytonie hm xy Jaf m at ike o variable Typa Static Convetion s m Sialic Hiekmune paucae Stait Targaraite Hi Mach Humber Bin Turtu erer nierzfy Min p fija Ari Aaa kd zalesip Angaidh Falie ni Spectr Heats I LILLA Figure 12 To list all the boundary conditions at once select the Boundary Conditions 242 33 option in the Tools menu 0 25 Patched Genera This will open the Boundary Conditions Open Faces dialog shown in Figure 13 OK open a report or sub dialog Each button shown will when pressed The number Total Boundary Conditions 300 Figure 13 23 of cuts in each report or subgroup is sh
9. homonnai i I EM J h K f Limiter Spatial Accuracy MinMod w 1 Third Order v MinMod J I Third order MinMod KK Third Order AJBuilder3tmyprojectspab3d33ipabgui PAB3D mode Figure 6 18 W Solver Presets Name user2 Figure 7 W UPMS C JBuilder3 myprojects pab3d33 pabgui upms2 File Applications Preferences Tools All Select Opposite Save Block Options Flow Type Set Preset J K Thin Layer v Diffusion terms 2 Equation Standard v Viscous Model parameters 0 001 Min Turb Intensity 0 100 Min Turb to Laminar Visc Ratio LR LS wal Integration SameasNS vw Spatial Accuracy k e F k u i Wall boundary e No Compressikility v Compressibility Linear v Stress Model AJBuilder3imyprojectspab3d33ipabgui PAB3D mode Figure 8 Viscosity Panel The Viscosity Panel shown in Figure 8 allows you to change the viscosity settings of each block The Flow Type Set Preset button functions similar to the one on the Solver panel Standard configurations can be used Selecting the Inviscid option will disable the turbulence parameter block as will selecting any other condition when the viscous model is set to laminar 4 l UPMS C JBuilder3 myprojects pab3d33 pabgui upms2 File Applications Preferences Tools Boundary Conditions 1 r Source l ja 2 pee All imn
10. load import an existing file in a native format depends on the format and the number of blocks in the grid 0000000 PABBD CBD TLNS3D During the model editing phase the user may choose to save their work at any time in the UPMS project format This is the architecture neutral format and will allow saving even if the model has invalid conditions Models with invalid conditions can not be exported thus this is the only way to save work in progress File save times for each mode are shown below _ PAB3D CFL3D TLNS3D 5 Blocks 48 Blocks 75 Blocks Once editing is complete and the model contains no invalid conditions the user then chooses FilelExport The full choice of export formats is available Conversion of file format File Format conversion takes place whenever a user imports loads or creates a file in one mode and attempts to convert it or export it to another 12 Direct conversion via the Solver menu takes very little time as shown in the following table Direct conversion is the time required to adjust compatible fields to allowed ranges and determine if there are any invalid conditions PAB3D to PAB3Dto CFL3Dto CFL3D to TLNS3D TLNS3D TLNS3D KREM al ee a B z RZE 5 Blocks 28 2s 48 Blocks Exporting data requires both the time to perform direct conversion shown above and output conversion Output conversion times are given below ise ess JBPABDC CETSD TENS 4 5 Blocks 2s 2s
11. 0 000 Min Turbulence intensity 0 000 Min p t u 0 000 Angle of Attack deg 0 000 Sideslip Angle deg 1 400 Ratio of Specific Heats Copy From BC 7 a ADVa si a Dieses marmizaza taaak OAD Masked INANI manani Figure 5 Solver Panel In Figure 6 we can see the Solver configuration panel Take note of the following features The global options block at the top is used to set parameters that affect the entire model The Global Iterations combo box allows setting the number of passes made at each block The Flow Type Set Preset button allows you to set the block parameters using Preset configurations When pressed the Presets dialog opens as shown in Figure 7 The first four presets can only be selected not changed The last five can be saved and given descriptive titles As with the Flow panels more than a single block can be configured if you wish The select All button will highlight every block and changing a configuration parameter will affected every block if the Save Block Options button is pressed This button will be highlighted in red after a change to multiple blocks as a reminder File Applications Preferences Tools Global Options CFL Scheme CFL p 8 T Glob iter 1 v literations 1 Factorization Scheme Scalar v Set Preset Integration Type Time Dependent v Jacobian Van Leer 1 v Grid Sequence Level Flow Type Flux
12. 2s Installation Available in AS amp M website at www asm usa com software Tutorial Available in AS amp M website at www asm usa com software Menu Reference File New Project Create a new project file from a grid file Load Project Load a previously saved project Save Project Save the Current project Save As Save the current project under a different name Load Grid Read the grid from an external file Write Grid Write the grid file Import Create a new project file from native solver files Export Save a project into native solver files After performing the data conversion internally the boundary condition dialog will appear if there are any unresolved conditions Resolve the problems and press the ok button on the main boundary condition dialog A new dialog will prompt you for the names of the files to save Close close the current project Exit terminate the application Applications Grid Editor Reserved for future expansion 13 Pre run Pre on the grid and display results Auto run Autog3d on the current grid and display results Solver Convert to different solver format Post run Post on the grid and display results Preferences Window Manager Set the look and feel of the interface Working Directory set the current working directory AutoSave save the project periodically Tools Boundary Conditions Display a dialog box of the general Model
13. Global Iterations CFL Scheme Local parameters Integration Type Jacobian Viscosity Panel ALL TURBULENCE PARAMETERS 4 Factorization scheme in CFL3D has only the 3 factor and Scalar options and can be set per block whereas PAB3D uses a global flag 5 CFL3D adds six new fields to flow xmc ymc zmc sref bref and cref CFL3D mode does not have the ability to switch units of measure CFL always uses a variable type of Reynolds and units in English thus temperature is given in Rankin 6 Boundary condition options are not equivalent among all solvers The differences among all three are listed below CFL3D PAB3D Mist all BC in CFL3D not in PAB3D and how they should be mapped Singular Axis Half Plane Singular Axis Full Plane Singular Axis Partial Plane Periodic in Space Free Stream Constant Enthalpy Entropy Pressure Radial Equilibrium Pressure Sinusoidal Specified Pressure Ratio PAB3D CFL3D Porous wall 2 Porous wall temperature 2 Constant wall temperature 2 K Polar Periodic I Polar Periodic J Polar Periodic Constant static values 2 Constant pressure 1 Constant pressure 2 Constant Mach 2 Constant total values 1 TLNS3D PAB3D Extrapolation First Order Symmetry about X Zero Order Symmetry about Y Zero Order Symmetry about Z Zero Order Symmetry about X First Order Symmetry about Y First Order Symmetry about Z First Order Fan downstream Fan upstream PAB3D TLNS3D Porous wall 2
14. Parameters set the physical units for the grid in meters Display Last Pre Display results of last Pre operation Active Display Enables Disables 3D visualization Configure View Control display of block structures Visualization functions The visualization functions of UPMS allow you to view multiple cuts faces at any angle and level of focus The visualization must be enabled it does not appear when a model is loaded or created If it did slower computers processing large grids might not be responsive enough To turn the visualization on select Active Display from the Tools menu Selecting this menu option again will turn the display off ZOOM to zoom the display hold the left mouse button while pressing the ALT key on windows Move the pointer up to move the model away and moving it down brings it closer ROTATE to rotate the display hold the left mouse button down and move the cursor left right up or down PAN to pan the display hold the right mouse button down and move the cursor left or right SETTING Zoom Rotate and Pan speeds These factors can be set by selecting the Model Conditions option of the Tools menu Increasing the factor will decrease the amount of mouse motion needed for a given amount of motion Display of Blocks Blocks can be displayed or hidden using the block display dialog This dialog is accessed by selecting the Configure View option of the Tools menu Display of Cuts
15. User Documentation Unified Process Management System for Computational Fluid Dynamics UPMS Dr Khaled S Abdol Hamid Shane Caldwell Dr Steven Massey Input _ Grid Fileand _ Pod Control Files j sk 1 p i Input Input Grid File and Grid File Project Files Output Output Control Files Project Files a i m z Two Output Options TABLE OF CONTENTS INTRODUCTION DATA VIEW PANELS DESIGN OBJECTIVES DESIGN CONSTRAINTS Introduction The Unified Process Management System was developed in conjunction with NASA under a SBIR phase two research and development contract Large and small companies research organizations and educational institutions are increasingly using CFD codes The Unified Process Management System UPMS can provide a valuable tool for the use of NASA s CFD codes Each of these CFD codes has specific formats for input files Simple modifications in problem definition often require extensive alterations to these formats Often users have to be trained by CFD code suppliers to enable them to model the problem correctly and to use the various options available in the code efficiently It becomes difficult for a user to be familiar with more than one code Therefore the need to develop an Intelligent System IS for CFD codes is being increasingly felt To a certain extent some codes in the field of Computational Structural Dynamics CSD provide facilities to chec
16. e first block range of type is compatible Similarly the values of the first flow set should be set to the implied values of CFL3D English measure Variable type Re All blocks should be set to use the first flow set Finally CO conditions should be converted to adjacent face conditions Viscosity and Solver options will be set to defaults the global Factorization scheme should be set to the Factorization of the first block We need not erase any of the other factorization options as they do no harm and can be easily recovered upon transfer back to CFL3D mode Overview of system design In order to meet the design objectives the design is broken down into the following class modules ModelDataStore The ModelDataStore class provides storage and access in a solver independent manner to the parameters and conditions of the model DataReport objects described below are notified of any changes to the model DataTranslator The DataTranslator class is the collection of classes responsible for performing translation from the internal model to from native solver formats Since each translator only translates between a native format and the internal format complexity is minimized in supporting multiple solvers A single translator class need only be aware of it s specific format and the UPMS internal format For example to translate from PAB3D to CFL3D solvers the PAB3D format is first converted to the internal data model then conve
17. e following Allow engineers to use several of NASA CFD publicly available codes Speed up the technology transfer of NASA CFD code to the public as they become easier to use Reduce the technical support for each code as users can utilize the online help provided by the expert system A universal case file can be used to generate input files for any particular CFD code The case file can be stored for later use or sent to another organization or group to simulate the same problem using another CFD code Build a library of standard test cases The input library can provide the user with direct access to a large and growing database of input codes Can be used as demonstration or teaching examples or as starting point for the novice Experts may also benefit by the ability to quickly switch between different CFD codes to obtain the best fit for the flow regime under consideration thus minimizing design cost The design for the UPMS concentrates on creating an easily expandable and maintainable program We anticipate that many new features will be desirable in the future Some of Input _ 4 Grid Fileand _ at Control Files a e Input Input Grid File and Grid File Project Files Output Output Control Files Project Files a N _ Two Output Options Figure 1 UPMS Simple I O Design Analysis PAB3D Internal Representations CASE FILE Generate Input
18. ill be located along the right side of the main application window in a tabbed format which will allow the user to select the form from several presentations Data view panels are customized for the solver format mode the user is currently working in Information that may be relevant to one solver code will not take up screen real estate and distract the user when working in a solver where such data is irrelevant A primary use of the system is to provide the user with a convenient method to evaluate and modify the boundary conditions of the model The primary method of modification is the Data View panels of the main application window described above In addition the user is provided with several prepared reports which are displayed in dialog form These dialogs present a list of boundary conditions which meet certain criteria such as adjacent face conditions which fail to be completely accounted for by the cuts in the face or adjacent face conditions which have no correspondent The user may double click on a boundary condition in the list to bring up a full display of the condition in the associated data view panel The final component of the main design will be a view area which will present the user with a three dimensional graphic view of the model grid The currently focused boundary condition will be highlighted using color and or a different appearance from surrounding boundary conditions The user will be able to rotate pan and zo
19. ined boundary conditions of the grid At least locations of solid surfaces should be defined to increase the accuracy of AutoG3d software To skip processing by AutoG3d press the Skip AutoG3d button This will leave all of your conditions set to Undefined After AutoG3d has run or been skipped a dialog will appear asking if you wish to replace the face file A face file contains far fewer points than the full case file and is much smaller It contains only points that lie directly on faces and only at regular intervals This file is used when UPMS is creating the visualization UPMS can handle very large grids this way Block Definition 9 Select all Caen o onm m zm m ru Figure 20 28 Issues with Exporting to CFD Codes This release of UPMS V1 0 does not address all the aspect of the control files for PAB3D CFL3D and TLNS3D We will work with these issues in the next releases of the UPMS PAB3D Code The section starts with the section described in Code Execution Flags Including Scale Timing Trip Etc of the PAB3D manual The UPMS will reserve all of the variables in this section in the case of import a project Only rj grid scale is the only parameter the user can input through the GUI If the user starts a new project the following are the default values for this section Axisymmetric Supersonic Nozzle rj dt iflagts fmax isym 0 0254 1 00 4 5 00 2 igrid iriso inorm kgl kg2 iperfl jkswp impvis 11 8 1 1
20. k the grid However they are not supported by IS Codes such as MSC PATRAN permit the creation of input files to run various analysis codes It is this kind of pre and post processor that is needed for CFD codes By making CFD tools more robust while also improving the accuracy and providing physical insight to the user the UPMS can increase the viability of CFD as a useful design tool Major industries that use CFD codes include aerospace automotive bio medical electronics packaging manufacturing and civil engineering Computational efficiency is key in producing quality CFD results quickly enough to be of use to design engineers Often inexperienced users unknowingly pose grossly inefficient problems due to poor grid design and or algorithm setup The value of an expert UPMS is that its detailed interface allows novice users to quickly gain experience in properly posed CFD analysis while under minimal supervision Codes such as PAB3D CFL3D TLNS3D Vulcan Overflow and others are some of the CFD codes developed under funds and support from NASA centers Most of the users of a particular CFD code express the need to use another NASA s CFD code for comparisons or validations process Because of the time involved in learning and setup of the input files another CFD code may not be utilized even if it has the right options for simulating the particular problem With the development of the Unified Process Management System we will accomplish th
21. m for these times a PC comprised of 256 Mbyte main memory a 20GB hard disk and a Pentium II processor running at 333 MHz running under Windows 98 Creating a New File The only requirement for the creation of a new file is the availability of a grid or face file The program will assign default values to the parameters of the model which the user should then edit Creation of a new file requires the external grid to be scanned as summarized below PAB3D CFL3D TLNS3D 5 Blocks 48 Blocks 75 Blocks The time for file creation is chiefly composed of the time required to run the Autog3d program which performs automatic patching of the grid Autog3d processing times for the grids are given in the table below processing time is independent of solver format Number of Blocks Number of Grid Points Processing Time 5 24 320 5s 48 884 736 25s 11 75 24 462 912 300 s The processing time taken by Autog3d only occurs during the initial creation of a project from a grid Any projects created directly from existing solver files do not require Autog3d processing and can subtract that timing see tables below Loading an Existing File Loading a project file in the UPMS format is relatively fast but depends somewhat on the solver mode that the user was working in when the file was saved as shown in the table P PAB3D CFL3D TLNS3D 5 Blocks 48 Blocks 75 Blocks The time required to
22. of grids will be performed at creation of new projects DESIGN CONSTRAINTS When converting from one file solver format to another Only valid conditions in the new format are allowed If the user attempts to export into a native format with unsupported conditions the software will return an error message When converting between two formats with different storage models unmapped data items will either be saved for later use in the file or be removed altogether Uncovered data items will be filled with default values which may vary depending on the current state per item All of these are the responsibility of the individual DataTranslator classes Each of these classes has a responsibility to import export and convert file formats from to the native UPMS format If import fails the import method displays an appropriate error message then throws an exception to the MainFrame Export functions work similarly Conversion after load should always work smoothly i e there should not be any problems if the load did not fail 1 PAB3D has flow codes assigned per block and as many flow conditions as needed CFL3D has only one flow assignment thus it is global all blocks 2 TLNS3D does not have any solver viscosity or flow parameters which may be altered but it does have additional boundary conditions not supported by PAB3D 3 When CFL3D is used the following elements do not exist which exist in PAB3D Solver Panel Global parameters
23. om the view by mouse motions over the view area in the application window DESIGN OBJECTIVES The purpose of this system is to provide an easy and efficient means of modifying CFD models Additionally the system will provide fast translation from to native file formats of several CFD Solver codes Built in reports notify the user of any solver constraint violations A model visualization display is included to allow the user to identify physical portions of the model which are being analyzed modified A principal requirement of the design is that it should be easily expanded to support additional solvers It should also allow the user to save an unfinished model for later completion Program File Locations All program files will be in a central directory especially configuration files Configuration files will store the default conditions for unfinished models Project File Location User files related to the same project will be expected to be in a single directory Although this directory can be changed by the user all data files pertaining to the project will be located in that directory Continuous reporting Solver design constraint reports will be updated continuously as the user edits the parameters providing instant feedback as to the state of the model Default boundary condition assignment Reasonable default configurations will be given to boundary conditions from newly created projects Automatic patching Initial patching
24. ottf ttjottf mjet 0 000 0 922 1 000 1 000 0 000 1 000 1 000 0 840 CFL3D Code The UPMS does not support moving or overlap grid Also the Ronie file will not be able to handle correctly a mixed boundary condition General and Patched for the same face You should use 1 1 patching for this case The following parameters are set to a default values However users can change them and import them back to the UPMS For the main control file DT IREST IFLAGTS FMAX IUNST CFLTAU 5 0000 0 0 1 0000 0 10 0000 NPRINT NWREST ICHK NTSTEP ITA 0 100 0 0 1 MGFLAG ICONSF MTT NGAM 1 0 0 2 ISSC EPSSSC 1 EPSSSC 2 EPSSSC 3 ISSR EPSSSR 1 EPSSSR 2 EPSSSR 3 0 0 3 0 3 0 3 0 0 3 0 3 0 3 For all the Blocks IEM IADVANCE IFORCE 0 0 333 ILAMLO ILAMHI JLAMLO JLAMHI KLAMLO KLAMHI 0 0 0 0 0 0 INEWGIGRIDC IS JS KS IE JE KE 0 0 0 0 0 0 0 0 NPLOT3D will always set to the number for blocks with a full range specified for each block For the case of Ronnie file ronnie out patch bin IOFLAG ITRACE 1 l 30 title here and for each block IIFIT LLIMIT WIMAX MMCXIE MMCETA ICO IIORPH 1 1 100 0 0 0 0 GLOSSARY Block a logically related subset of points in a grid Boundary condition The parameter assigned to a cut to Cut sometimes called a segment this is a subset of the points on a Face Export to save the model data in a format that an external program can read and write Face a single face of a six sided block Faces do no
25. ower right you can see the button which will copy the Initial flow values to this section The Block Selection control includes buttons to select every block select the unselected conditions instead Select Opposite and a button labeled Save Block Options This button must be pressed to save changes when multiple blocks are selected When multiple blocks are selected the Flow Set does not reflect the assigned flow set of the blocks Instead it shows flow set number one Similarly the number of sub domains does not reflect the number of sub domains in every block Instead it shows the minimum number of sub domains for every block So if three blocks are selected and two have five sub domains but the last block has only two the sub domain control will only have two sub domains to select from Adding a sub domain will add a new sub domain to each block but it will be added to the end of each block s sub domains Flow IC panel In Figure 5 we can see the Flow Initial Conditions panel which has exactly the same components as the Flow BC panel File Applications Preferences Tools Help r Define initial condition subdomains Subdomain Number Select All lt Select Opposite Block 4 ada Delete Save Block Options h ufo szh kajsi k2 r Flow Set Units English w gt Adal pelete Variable Type Static Condition v 1 000 Static Pressure psi 1 000 Static Temperature R 1 000 Mach Number
26. own in parenthesis above each button Buttons highlighted in red are critical conditions The presence of critical conditions will prevent any attempts to export Not Defined Dama E wod r T o Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined CIEEIEZOCICITICICHE Ll Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined Not Defined a a a JX Ja et oe 8 Not Defined OOOO OO O 00 0 Figure 14 Figure 15 ea ea ee a ee Pressing General conditions or unresolved will open a dialog shown in Figure 13 Three buttons will take you to Flow Symmetry or Wall condition reports Figure 14 As with the Boundary condition dialog the numbers in parenthesis above each button shows the number of cuts in that report 24 Farfield 1 Farfield 1 Farfield 1 Farfield 1 Farfield 1 Constant pressure 1 Constant Total values 1 Constant Total values 1 Constant pressure 1 Farfield 1 Farfield 1 Farfield 1 Farfield 1 Farfield 1 Farfield 1 Farfield 1 Farfield 1 Farfield 1 Farfield 1 Farfield 1
27. references menu The dialog in Figure 19 will open To select your directory you must highlight the folder and press the Select button in the lower right corner Do not press Select within the directory In other words you should not see the directory you want to switch to in the Look in box at the top The directory must be highlighted in the main window of the dialog to be properly selected Creating a New Project To create a new project select the New Project option from the File menu A dialog will open asking for the name of the new project and the grid file You should also choose the default solver format for the project and whether the grid is single or double precision The grid must be formatted as PLOT3D Big endian Press OK and the dialog of figure 20 will appear The grid file alone does not contain enough information to perform any useful function Solver processes additionally require information about the connectivity and physical boundary condition to apply to individual grouping or faces of blocks At NASA Langley Research Center Dr Paul Pao developed the AutoG3d software which with limited information about the physical boundary condition can construct most of the connectivity information Also the program can detect the location of symmetry and 27 inflow outflow locations A dialog box will appear as shown in figure 20 to allow the user to input more information concerning the geometrical definition for not def
28. rror is displayed and no files will be generated When multiple blocks are selected the limits cannot be changed When using UPMS in CFL3D mode the selection of some boundary conditions will replace the destination sub panel with a group of input fields for condition parameters The number and names of the parameters will vary as well Post Panel The Post panel shown in Figure 10 is used to change the data which is used by the external Post program The top combination is the group You may add additional groups or delete them Each group will contain parameters for the blocks shown below immhio_ imaxjia isep ho Miminho Imax 1 0 _ Astep 10 Rmin fi 0 K max 1 0 K step Funciles Mass Fare a Block 1 subci kuBaterzmyprojactspat TRaLgu PAID mode Figure 10 The ranges and steps are shown beneath that as well as the function The Save button in 21 the lower right corner must be pressed to change these options UPMS will not allow you to save changes where the minimum is less than one or where the range spanned is zero W UPMS C JBuilder3 myprojects pab3d33 pabgui upms2 File Applications Preferences Boundary Conditions Model Parameters Display Last Pre aay 1 gt Function MessFiow AJBuilder3imyprojectspab3d33ipabgui PAB3D mode Figure 11 Select the Active Display option from the Tools Menu Figure 11 The program will spend a few moments reading the
29. rted by a separate class into CFL3D format This also promotes extensibility and maintainability since corrective modifications to a class affect only that class and new classes can be designed and added to support new solver codes 10 ModelView The ModelView class provides the on screen three dimensional display of the grid and surfaces Display attributes such as color and solid wireframe mode are supplied from configuration classes Panning rotating and zooming of the display are controlled via the mouse The display can be configured to center the current block face cut in the view automatically and view angles may be saved restored for easier navigation DataView The DataView components provide the method for inspecting and editing parameters of the model Each DataView component displays a record of data which the user may edit Boundary condition form displays summarize the scope number of cuts and assigned boundary condition for each block face Flow form displays show initial flow parameters assigned per block for supporting codes or globally for non supporting codes Solver and viscosity forms display additional viscosity and general solver options as supported Performance The following benchmarks are results of test runs on the current version of the software This version has not been fully optimized and debugging traces are still enabled As a result timing figures should improve in later releases The test syste
30. systems It also shows the name and directory of the current project The main menu is used to perform actions within the program such as loading and saving The status bar displays the current state of the program Most of the time it shows the current working directory and the solver mode The display panel shows a visualization of the model To the right of the display panel is the current panel which is selected by clicking the mouse on the panel tabs above it Finally the action log shows a running list of the actions taken by the user during this session Configurations Panels File Applications Preferences Tools iof x Help f Define initial condition subdomains bdomain Numbe h Jafa szh kafat fin Turbulence intensity Min pr t i Angle of Attack deg Sideslip Angle deg 1 4007 Ratio of da i AJBuilder3imyprojectspab3d33ipabgui PAB3D mode Figure 4 Flow BC panel Referring to Figure 4 the following sections are visible to us The Block Selection control in the top left corner controls the current block Next to it the Sub domain 16 Sub domain Selection Global Options selection control the current sub domain Below the Block Selection The Flow Set Selection and configuration show the currently assigned Flow Set and the values for it The Global Options are next to that and are constants for all Flow Sets blocks and sub domains Finally at the l
31. t need to be planes or even quadrilaterals Flow Set the entire group of parameters which are used to describe a flow model Flow Sets may be the same for an initial flow and a steady flow but they are not required to be SO Grid A collection of points in three dimensional space and the connections between these points A grid is normally broken down into segments of fixed size called block or zones Import to read a file generated by an independent external program Model a grid see above along with the Flow Sets solver parameters and all other parameters relating to the CFD configuration Open Face a state in which the cuts defined on a face do not span the entire face Although no single cut must necessarily cover the face all the cuts must do so as a group Undefined Condition a cut that does not have a valid boundary condition assigned to it Unmatched Pair a state in which a patched condition does not have a corresponding connection in the destination face The destination of a source must also have a condition with the first source as destination Zone see Block 31
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