Wind Tunnel Lite App for iOS
'Turn your iPad/iPhone into a wind tunnel simulator !
Watch the fluid flow around obstacles.
Tap the blue button to bring application controls, letting you choose between particles or smoke rendering, and between different models. Interact with the fluid via single or mutli-touch.
Fluid motion is computed by solving Navier-Stokes equations, at high definition (15000 particles moving in a simulation grid of 19000 cells on ipad) thanks to a well-optimized code taking the most out of CPU performance.'
This app has been recommended by Kathy Schrock as a creating tool in Bloom's taxonomy.
This is a free app.