Extran Storm Drainage Model
Contents
1. Baiect ae len in tha data fle wr more inicr maton mem U uwo PRA Pay PCS axe CYF M psa 4 Park Ed DPA Cats AT R ossia Figure 5 Locate the cursor on the fourth line below the second asterisk Press enter to create a new asterisk and line Now on the left menu do a double click on the word Title lines Double click on the line Al A new menu will prompt Select one copy and check the box that includes the comments then click the Insert button This is the title of the object Two lines will appear The first one is a comment line that indicates that the next line is a title In the second line A1 appears which represents the first line of the title section Notice that the description of this line appears in the help menu A green cell with the number zero will also appear Click on the ASCII Tab located in the top of this window Replace this zero with the Title of your project inside single quotes Click on the Field tab to return to the field environment Two title lines are usually used to describe a project Locate the cursor on the asterisk located below the line A1 Press enter to insert a new line Locate the cursor in the line below the line A1 again Double click on A2 in the left menu This will insert a new title line Don t include the comments for this line Repeat the same steps used for line A1 After you finish include an additional asterisk line see Figure 5 The following diagrams are2. X Ww ne Ce i ee d eS s ee ASG ie ta aa Soot y B ELR y s SENS YN is un i MS Le Y WY me S RA a i aye mi A A a Be LIED VH LA sa Pilat lt z R H 15771 ae a eae 7 eg Ms aly rime rg E TS DE Ti TEV EG pa Je a i T m a rig TE NEG leg JER TYSTEB k Yw eau tn lies mos myw AU NER DDO arco l Bod Figure 11 Use the first icon the arrow from the top GIS toolbar to select the elements Double click on the first pipe number 3000 A new popup window see Figure 12 will display the positioning of the pipe and allow you to modify its attributes 12 P Im SEE CMR ARB 05 rs cvs A er arde Gr Condit A PAT d 2 a A R 1 nm D Cradraiur Easting 415 142857 Nothing 238 444700 Cord s 3000 zelected Map Lercth 145 uiu JO CRT SFCSAMM IUD Mopeoniz Pank ay Edt 2000 PAS Qe PCNA Je AW R wx Figure 12 Select a circular pipe type 1 length 300 ft depth and width 1 ft and invert 1 and 2 0 5 ft see Figure 13 In the Extran block the pipe slopes are determined by the relative elevation of the manholes If the material of the pipe is concrete which it is here then use a Manning s n of 0 013 The required units for each cell may be found in the help window s hyperlink When you are finished entering the first conduit s data click the x button in the top right corner of the entry screen Enter the other conduits infor
3. Format FREE NBCF KC Hydrogesph Locskons Ii 302 1 K3 Flow ire b NTIDE di lt 3 uiu Ki 2 T E anm 3D1 302 gt TEX QCARD X E o O a a KJ i 5 7 5 KI 1 5 a Ka a ENDPROORAM ja ON i ea Comment Ines 1 annotat your daba fle wth noces andfor parameter names mw a lt a a ar T aroma cus Y TY AWYR misan Figure 9 SAVE THE FILE WITHOUT RUN the far left diskette icon on the top tool bar Don t close the window GIS Runoff Module to Enter Pipe Information Create a new object from the PCSWMM2002 window Select GIS object and assign a name The object is an earth symbol that will be created in the project window You may have to drag the Pat Extran and Pat GIS objects apart by holding down the left mouse button and moving one as they may super imposed on top of each other Double click the GIS object On the left side are the SWMM modules that can interface with the GIS module Runoff Transport and Extrans Check the little box to activate the Extrans model and deactivate the Runoff and Transport modules Click on the word Extrans to activate the Extrans module a shadow box will be created around the EXTRAN module if done correctly see Figure 11 Optional Import of Images into the GIS Module It is possible to import a site image such as a topographical map or an aerial photograph into the GIS window to make placement of the drainage elements easier However this is not required and the elements ca
4. 0 LPLT 0 and NJSW z 2 Insert a B4 line with comments and enter the following data 300 301 and 302 This line lists the manholes Insert a B5 line with comments and enter the following data 3000 and 3001 This line lists the pipes See Figure 8 Je Fait 2002 PAT Extras dat im NIE SBEKIX st Fie Ect Uew Tons Hep Big a ale Hale 971 8 rry rm E Tite Lines HB Aun Control Prnt Contest EXTRAM Ai Simple Extran Exemple Oniversity of Alaeheoms L B1 Tims Step Corbyol xu Robert Pitt Jason Kirby B Modeind Procmzme B3 Gonera Pret Control HTCY DELT TZER NSTAR INTER UTER BRED IDATZ B4 Junction kx Pining B1 500 20 0 a a i 1 20 0 20020405 BS Conchis fer Parting WETRIC NEQUAL ANEN ITMAX 3URTOL B2 o a a 30 0 05 HHPRT NQPRT _NFPLT LFLT COEL B3 z x IPRT 84 300 3D1 302 PRI B5 1000 3002 ENDPROORAM E Comdeiz Uhannels E Beidges E Jacbons E orage Units amp Ontiens i ea comment lies Yo annotata your data fle wt noces andor parameter names mm eir C Wy 977 a rcs DOE cif M eoa Pant EPTXTUM Q AUT S 5 Figure 8 Conduits and Channels The next lines to be added are C1 located under Conduits Channels Add 3 copies with comments and leave blank Data will be created later utilizing the GIS module Junctions The next lines to be added are D1 located under Junctions Add 2 copies with comments and leave blank Data will be created later utilizing th
5. PCSWMM 2002 EXTRAN Block PAT AVENUE Storm Drainage Design A Hello World Example Prepared by Dr Robert Pitt and Jason Kirby Department of Civil Engineering University of Alabama August 20 2002 Introduction SWMM the EPA s Storm Water Management Model is probably the most commonly used model for evaluating and designing large and complex urban drainage systems It is frequently used to investigate overflows and other problems in combined sewers CSOs separate sanitary sewers SSOs sewer rehabilitation options management options to decrease basement flooding and the typical designs of new sanitary storm drainage systems Numerous SWMM resources are available through the University of Guelph while the latest model versions along with essential documentation for PCSWMM can be downloaded at http www chi on ca swmm html The following example is a simple Hello World analysis used to evaluate a small storm drainage system utilizing the EXTRAN block in PCSWMM2002 Extran Extended TRANSport is a hydraulic flow routing model for open and or closed conduit systems Extrans is utilized whenever it is important to represent severe backwater conditions and special flow devices such as weirs orifices pumps storage basins and tide gates This simple example will demonstrate how to set up a model for analysis and examine the resulting output The provided screen shots will illustrate all of the steps required to create the in
6. TETMTTTTTITTTTTTTT SWAN 4 460 Simulstion Date and Tine Sumary WETT WFWA Y TTTYT TYTUTYTETTYTTYTTTT TT T T T UTvtvTvT vverttr Starting Date August 20 2002 v v Time 10 55 12 237 y y Ending Date August 20 2002 P v Time 10 55 12 456 v Elapsed Tine 0 004 minutes v Elapsed Time 0 263 seconds r W ETVTTYETEYTIFTUT TYT ETTTTETETETTITTUETETUT TTUT AAA Next return to the main screen double click on the Extran object and select Plot Output File Click on the drop icon labeled Flow in the upper left corner Select which nodes you wish to view 300 302 The following Figure 18 is an example the plotted output file This screen will allow you to plot depth flow velocity vs time and modify the time series to manipulate the output for different storm events 18 ed sta RS ERE P Graph 2002 Fie Ed UM Hep D PAT Erran caf 48 2002 0 00 6 117 Depth v xn jc wa 400 301 302 M xe flow j 30 J 1 j aon il Veccvy pl f d E o 2 J a j J H uc A LC CERE TEM Mni fie L L i 4 wi Subl tis t GroLrer No gd 0 30 1 00 1 30 200 2 30 DoteParts Hne Apr 2002 Date Time Dota ebek Hide FortSire Medun Moroctrore Oll F y e eva a mr Apply to all ditplayed timoreser Execute ivt TES Add Zooniyie Honrortel nb uw Ivefertt ON cae amp inimpeiym tn a tind laete ot minutes 3
7. ata entry errors have been made Once the file has been updated and reviewed you will be ready to run the program 16 bs Feit 2002 PAT Extrae dat SIC S WEILE s Eg Fi ER Uu Tools Hep ag aj amp a o ea 717 rey ree Boe Lines i Simple Extran Exemple University of Alehema E Aun Control Pont Contest A Robert Pitt Jason Kirby E Dondaitz neelu E Bridges NTC DELT TER NSTART INTER TER REL DAT E desctons 81 500 20 0 a a i 1 20 0 20020402 E wage Units METRI NEOORL AMEN ITMAX SURTOL B Oncos B2 a a 30 o as E Wor HEPET NOPRT NELT LFLT NISV E Pwnns B3 3 2 a z E Blaandarg Cond onz JPRT E Hydeogeaphs Bt 300 3D1 302 PRT 85 3000 3001 NOOD NJUNC2 NIUNC2 Q NXLA3S AFULL JEEP WIDE EN crea ZP z ROUGE ci 3000 300 301 a 1 0 t 1 300 0 5 D S D 013 i 1001 301 302 a i t i 300 o s o s 3 RELEU 2 QINST re Coord Y Coord IWHICH SURELEV bi 100 500 490 a 340 35 Di 301 478 1 468 1 a a aes 23s Di 302 4361 3 451 3 625 23S IFREE NBCF Ii 102 1 UTIDE Ji i Select an tem intha Gate fle for more Imormaten A Maium UO T PU aora aromas PU Att wm Figure 16 Running the Program Save and run the program by clicking on the save run icon on the top tool bar or by double clicking on the runoff icon in the main PCSWMM screen and selecting Run SWMM Once the input file has been successfully run you will be able to examine the output file Reviewing the Output Return to the
8. basic drawing of the purposed sewer line and should help you to visualize the system as we manually enter data into the Extran model Manhole 300 Manhole 301 Manhole 302 Pipe 3000 Pipe 3001 Flow Direction Figure 6 300 r H 10 rp 300 7 3 90 slope 461 3 300 5 600 slope 451 3 Figure 7 Run Control Information Run control data is included in the B block Double click the B1 Time Step Control option under the Run Control Print Control title on the left side of the page Select Insert Line check the Include Comment Line with Parameter Names and enter a 1 for the number of copies A title corresponds to each cell location Notice that when you use the keyboard arrows to move between the cells the description of each possible value is presented The hyperlink in the help window lower right hand corner describes each cell in detail For this example enter the following data into line Bl NTCYC of time steps 500 DELT length of time step in sec 20 0 TZERO 0 0 NSTART 1 INTER 1 JNTER 20 REDO 0 and IDATZ date 20020409 Insert a B2 line with comments and enter the following data METRIC US units 0 NEQUAL 0 AMEN 0 ITMAX Maximum Iterations 30 AND SURTOL Flow Fraction 0 05 Insert a B3 line with comments and enter the following data NHPRT of manholes 3 NQPRT of pipes 2 NPLT
9. d d res on vg C Wiapolaha to fo tina ban of the acl la d Ine ation Giaph Style Lrs z xx e y LreCok n ELI Shut salaciad ime saa es by Friso Lire rie lath Dare ks PortSht Circin en mm WO A A lae la l oan lt lt NT Tat EL Figure 18 Viewing the Dynamic HGL The most interesting feature of the Extran model is viewing the predicted HGL Double click on the Extran object and select View Dynamic HGL Select all the junctions 300 302 and hit OK A profile view of the pipe system will appear Press the Play button in the lower left hand corner to see how the flow moves thru the pipe You should notice that the flow overtops manhole 301 at one hour red circle this indicates system failure Enlarging the pipes or manipulating the flow volumes can eliminate these failures You can edit and rerun the input file to view different flow profiles Entering K3 0 0 0 0 K3 1 10 7 5 K3 15 0 0 0 K3 4 0 0 0 will result in a double failure at manholes 300 and 301 I9 Entering K3 0 0 0 0 K31 5 7 5 K315 0 0 0 K34 0 0 0 doesn t result in a failure however you can see where the flow begins to move up manhole 301 before receding The figures below display examples of these failures 20 Arcioni bawd on 281 dur ce 282 CEL CM Ce en fw OVSE o fat Man CVSEL S 4781 Maw OVSEL e 4822 A Few SWMM References James W W C Huber R E Dickinson and W R C James Water System
10. e GIS module Boundary Conditions Insert 1 copy of line I1 include comments located under the Boundary Conditions Enter the following data JFREE location of outfall 302 and NBCF 1 Insert a J1 line with comments with the following NTIDE BC Index 1 This line indicates that there is no controlling structure on the outfall Hydrographs Finally we need to enter the hydrograph data Insert a K1 line and enter NINC 21 Next enter a K2 line and enter JSW 300 301 302 see Figure 9 The most important element of the EXTRAN model is flow hydrograph entered within the K3 lines Insert 4 copies of line K3 with comments and enter the following data TEO QCARD X K3 0 0 0 K3 1 s Ww 5 K3 L5 0 0 0 K3 4 0 0 0 The TEO column identifies the time of day in decimal hours The QCARD X column list the flow in cfs at the locations identified in line K2 eee ry gt j 1 ET Es Eeit 2002 PAT Extras dat im SI SIE WEA L std Fie Edt ew Tons Hep o aj x Be 8j ale Hae 9 1 Arr Cem E Tite Lines 8S 3000 3001 E E Hun Contml Pont Contest E Condis Chomel cob uC NJUNCE Q NXLASS AFULL EEF WIDE EM P i ZP z ROOGA E Midge ci o a a a 0 0 0 D 0 D o E ucbons ci a a a a a b D b b E wage Units E Onticss ro JRELEV 2 QINST to X Coord Y Coord WHICH SURELEV E Wor oi oa a a a a 0 0 b BoPumps D1 a a a a 0 o E arandarg Conditions Di 0o 0 D E Hybopaphs K1 Hydrogeeph
11. le option The window will show Entries for Export select All Entries on Layer and Scope of Replacement select Replace All Entries and then click on Update See Figure 15 14 m PEWO CR 2002 CAD rarer Fils CSUN DOO AL cra HAPAT CA iil Pi EX We ne Baer f Tampon Fee Baar ee D p pas JN S E ui A 43522 X Ms i ERAS WS NE UU gen S d a a ar TT e t scel la 75 Mes p WR bs PM Ue xis NSW S kt AN ale i f oe ZT p B 25 E VW iy Wy k 110 772177 7 7 Ap T 397 En WU Vue oe a A TRA FR DE BEN f tied i Nel ae Uf Ff TWA ae ld Zr 2 f i a m P 15 E PCSWAM CIS 2002 CriPragram Files CSW 20027 ra Modell AT OS mdi ie SEC arit i T3 t3 Y E I IE si erue i 2S L a Update Extran input file DPI WES EA M ur 5 vdd Gia DL TU yh Aaanciated fla C Pysgram Fla PCSWNM XXOE han Model PAT Esan dat En es for erpat Al erlius cr lares C Fine d aries Selected mis orie td ae z li D Is a 2 Figure 15 Minimize the GIS window and go to the input file The edit window will prompt that the file has been changed by another program click Yes to refresh from file Figure 16 shows that the information in the C1 and D1 lines have been changed to reflect the data entered in the GIS module At this time take a look at the input file to ensure all the information is present and no d
12. main PCSWMM2002 screen The red flag in front of the Extran Object pipe square will have been removed meaning that the input file has been executed Double click on the Extran object and select View Output File The output file will detail selected output hydrographs and list the average flow velocity max amp min flow as well as the average percent change within the manholes and pipes Make sure that the Transport Simulation ended normally See Figure 17 17 ECCE LIL M LENGTH OF UPSTR OF POWNSTR TOTAL TAXIMUM HAXIWUN DRY SUDCRITICAL CRITICAL CRITICAL rov NYPRAULIC CROSS JECT FLOU NIN FLOW Its rLoOwCnin ruowcmim CODIC FT RADIUS YTI AREA JET 9 00 30 00 2 71131404 0 39092 9 00 165 33 3 92345404 n 3042 UNDEFINED UNDYF INED UNDEF INED UNDEF INED 3 92341404 AAA LL LA A AAA A AL AAA t0 Y AVERAGE amp CHANGE IN JUNCTION OR CONDUIT 13 DEFINED AS Y CONDUIT CHANGE gt 100 0 O n 1 Qin Gfull a JUNCTION CHANGE gt 100 0 Y n 1 Tint Yfull Y TOUT TMT MEMES TERT ETE TTT TTT TTT eee eee eee rer ere The Conduit with the largest average change 3001 bad 0 693 percent The Junction with the largest average change 300 bad 2 029 percent gt Extended Transport model simulation ended normally Always check output file for possible warning messages e gt Your input file was named PCTDpl dat gt Your output file vss named PCTDppl out WEVEVAEVAEWVIETIERETTETETETEYTETETIVTETETETE
13. mation in the same manner Pipe Type Length Roughness 3000 0 013 Use the first icon the arrow from the top GIS toolbar to select the elements Double click on the first manhole number 300 A new popup window see Figure 13 will display the positioning of the pipe and allow you to modify its attributes RT t pais FNCU DOO AL cian Mi ND CX ail im SIEG WE X O JA x wa ejje im a eaa iue curs rr 1 Aweh w J Waapat FM Y nm v 4 PATAVE M GroundE bev SIE A IneesEh groundelev yj inier x Lradraur Easing 380 566820 Nothing 231 83406 Node 300 calwcked Cocecinades 340 215 auium 390 ree maroon DOD Mewn Lis Park am GLOD PA gwy FGM I AR ino an Figure 13 Only the ground elevation and invert elevation need to be modified Leave the inflow and initial depth values equal to zero Enter the following elevations in the appropriate nodes Ground Elevation 478 1 468 1 461 3 451 3 These values will give pipe 3000 a 7 3 slope and pipe 3001 a 5 6 slope Linkage of GIS file with Extran Block Link the GIS with the extran file by selecting Associated Input Files from the View drop down menu Chose the Extran File option and browse to the edited input file Once the file has been located select Update then select Close see Figure 14 To update the edited file select from the File dropdown menu and select the Update Extran Input Fi
14. n simple be placed on a blank screen Import the image of the site by selecting connect background layer located in the file drop down menu Browse to locate the desired image Patwatershed jpg on your computer select Open and then select Connect see Figure 10 When the program asks for the reference file chose Cancel This option is for georeferenced images that are not needed and not available for this example When the image is registered a text file locates the image in map coordinates For this example there are no such referencing files To enlarge or reduce the image in the GIS window click on the and icons in the top tool bar and then click on the image 10 eje 5 mimis His SSSR SNS SSIS DWN In this example we are importing a topographic map with the Sewer s Sub areas already drawn in We will locate the manholes and sewer pipelines with the GIS module which will automatically create the input file lines Entering the sewer layout using the GIS module greatly simplifies the linkage of the elements to the C1 and DI EXTRANS block lines With the second icon located in the top GIS toolbar add the conduits Click the pipe junctions from the upslope to the downslope direction Nodes manholes 300 301 and 302 along with Pipes 3000 and 3001 will be created automatically see Figure 11 11 g PCSWAN CK 2002 CD ryan Ffl WCSWUM OALA a kind T CA inl sm SWKEXS f
15. put file Starting the PCSWMM2002 Program To start the program go to the shortcut located on your desktop see Figure 1 or select Start Programs PCSWMM2002 In most cases the opening screen will appear However in some installations you may be asked for a password key 8 mig PS AE a AD MI Figure 1 Creating a New Project PCSWMM generates a folder for each project Inside the folder the project models are created Create a new folder File New Create New Folder Select the directory for the location on the computer using browse type in a folder name Extran Model for example then press Create Folder see Figure 2 Each element used in the model is called an Object of the project folder In this example you will create a Sanitary Sewer simulation using the EXTRAN block of PCSWMM2O02 Go to File New Create New Object Under object type drop down the menu and select a EXTRAN object type Type in a name in the upper field Pat Extran for example and select Create Object An object will then be created a square made of pipe elbows with a red flag in the front see Figure 3 The red flag represents that the object has errors incomplete data or has not been executed by PCSWMM Double click on the Extran object and select Edit Input File Figure 2 g ICON 2003 C ragram Flies SWMU ODADA Modal ImNEESWKEIXS 5 fe EX Jub dee ew ey Extrans Model UXTRAN Oter igure 3 Basic Data En
16. s Models Hydrology Users Guide to SWMM4 RUNOFF and Supporting Modules CHI Guelph 1999 James W W C Huber R E Dickinson L A Roesner J A Aldrich and W R C James Water Systems Models Hydrology Users Guide to SWMM4 TRANSPORT EXTRAN and STORAGE Modules CHI Guelph 1999 Huber W C Heaney J P and B A Cunningham Storm Water Management Model SWMM Bibliography EPA 600 3 85 077 NTIS PB 6 136041 AS U S EPA Athens GA September 1985 Huber W C and R E Dickinson Storm Water Management Model Version 4 User s Manual EPA 600 3 88 001a NTIS PB88 236641 AS U S EPA Athens GA 30605 1988 21 Metcalf and Eddy Inc University of Florida and Water Resources Engineers Inc Storm Water Management Model Vol I Final Report 11024DOCO07 71 NTIS PB 203289 U S EPA Washington DC 20460 1971 Roesner L A Aldrich J A and R E Dickinson Storm Water Management Model Version 4 User s Manual Extran Addendum EPA 600 3 88 001b NTIS PB88 236658 AS U S EPA Athens GA 30605 1988 22
17. try On the top center of the page window are three tabs Forms Fields and ASCII SWMM is very strict about the position of each variable in the input file a wrong space will cause the program to fail For that reason the tab Fields is normally used Once you get some experience you can edit or modify a file easily within the ASCII format Fie ER Wen Tools Hep aa amp al ie 22 rry Cm E Condetts Channets Selscl an tam in tne date fle for more inte maton Figure 4 On the left hand side there are multiple sections of the file representing sets of command lines Each EXTRAN file has at least the Title Lines Run Control Conduits Channels Junctions Boundary Conditions and Hydrographs Along the bottom of the screen there is the help window which describes each cell when the field form is used Each new file starts with an asterisk symbol in the first line the word SEXTRAN in the second line and an asterisk symbol in the third line The comment lines also begin with asterisk and space see Figure 4 bs fait 2002 DAT Daran dat mel BL Cl CE ES Fie Edt Mew Took Hep ug alj ee gt gt M Gene E Tithe Lines E E Aun Cool Print Control EXTRAN 1 1 E Donuts Channels AL Simple Excran Example University of Alebete INI I Az Robert Pict Jason Kirby E Jwrctmno E wage Unis B Onlices SENDPROGRAN E Wers E Puma E Bosndery Conditions E Hydrogen
Download Pdf Manuals
Related Search