Wind Tunnel Fog User Manual
Contents
1. Place them so that they sit directly on the glass window shining directly down on the object Fig 11 Figure 11 14 If 15 minutes have elapsed since the wind tunnel panel has been turned on then start the wind tunnel with an initial velocity of 10 15 mi hr The wind tunnel needs time to warm up 15 If the orange light is illuminated on the fog machine remote then press the green button to start shooting fog into the wind tunnel Fig 12 Figure 12 16 Set up your camera underneath the black velvet hood and take photographs Clean Up 1 2 Turn the wind tunnel speed down to zero then turn the wind tunnel off and the wind tunnel panel off Then turn off the wall panel and close the gold pad lock Unplug the fog machine Empty the fog liguid tray into the used fog liguid container Remove the object from the wind tunnel Remove the stream lines from the back of the wind tunnel Remove the velvet and the frame from the wind tunnel Return eguipment to checkout2. WIND TUNNEL FOG VISUALIZATION SYSTEM USER S MANUAL SPRING 2005 ALISSA WONG Y VLAD MUNTEANU Figure 1 Fog Visualization System 1 Wind Tunnel 12 Black Velvet 11 Honeycomb 13 Velvet Frame 10 Copper Tubing 14 Viewing Area 5 Wind Tunnel Control Panel 7 Wind Tunnel ON OFF switch 6 Wind Tunnel power cord 9 Fog Machine setup 4 Fog Machine 8 Fog fluid tray R Introduction The Wind Tunnel Fog Visualization System depicted in Figure 1 was created to help students better visualize and understand air flow The fog machine will generate a single white fog streamline that will be visible inside of the wind tunnel and students will be able to observe its motion around different objects such as miniature airplane wings If you intend to take photographs of the fog streamline please follow the entire procedure But if you intend to just observe the streamline you do not need to complete steps 9 10 13 and 16 of the procedure Equipment Needed 1 Black Cardboard Piece Velvet Frame Black Velvet Lights at least 500W recommended Key to Padlock Copper Tubing Cart Fog Machine 20 8 28 2 a ee Fog Machine Setup pa gt Objects to place inside Wind Tunnel Setting Up 1 Open padlock to wind tunnel power panel on the wall Gold pad lock Fig 2 The key is in the ITLL check out office with Mike Elliot Figure 2 2 Turn wind tunnel power panel on by lifting up the bla
3. ck and red handle Fig 2 3 Turn Power to Wind Tunnel Panel ON and allow wind tunnel to warm up for about 15 minutes Fig 3 4 Turn Wind Tunnel ON Fig 3 5 Turn knob to set wind tunnel speed close to zero Fig 3 Wind Tunnel Zero Wind Tunnel Speed Wind Tunnel ON OFF Power to Panel ON OFF Figure 3 6 Place the piece of black cardboard on the inside back wall of the wind tunnel place the scotch tape tabs between the gaps and close 1t Cardboard 1s used to provide a high contrast with the fog Fig 4 Figure 4 7 Place object inside of the wind tunnel Fig 5 8 Plug in Fog Machine and wait for about 3 minutes for Fog Machine to warm up 9 Place the wood frame that will hold the black velvet screen on the wind tunnel Fig 6 Figure 6 10 Place the velvet over the wood frame on the wind tunnel Fig 7 Figure 7 11 Insert one end of the copper tube the end without the plastic into the wood block in front of the smoke machine Push it through so that it sticks through about 1 Fig 8 Also make sure that the tin tray is underneath the smoke machine nozzle and the copper tube extends out over the tray Fig 9 Wood block to hold copper tube F ae F F smoke Machine O lintray to catch q 2 drippings Figure 8 Figure 9 12 Place Plug the steam line into the honeycomb of the wind tunnel Fig 10 Figure 10 13 Place the lights on top of the wind tunnel
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