Put your car or other items in a WindTunnel!
Place a photo of Object in your Photo Library with the background painted white.
Scan the photo, then save it as an Object.
Several sample photo Objects in zip are the first thing on my web-page.
There is one sample Object on the Find Object page. select it and tap Done Button. Insert it in the Wind Tunnel, positioning it with your finger. Press Run Button.
Change the number of pixels per streamlines at any time. '2' gives the most interesting view of the eddies and high/low pressure areas.
The next Update will include the ability to place several Objects in the Wind Tunnel.