# Real-time CFD?

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 May 30, 2008, 19:08 Real-time CFD? #1 Joep Moritz Guest   Posts: n/a Sponsored Links Hey all For my MSc final project I'm trying to do a simulation of a bullet hitting a gelatine, which is often used in the field of wound ballistics. I have a feeling CFD could be used for this. Am I right? Secondly, would it be possible to do a real-time simulation by simplifying the maths or using a small grid? It doesn't have to be accurate, I just want to show the visual effect. Thanks for your time P.S. For those interested, my MSc is Games Programming (hence the real-time requirement) and this project is is supposed to simulate a bullet hitting an apple as seen in this video: http://video.google.com/videoplay?do...57552702964257 I doubt I can get anywhere close, but that's fine

 May 31, 2008, 03:41 Re: Real-time CFD? #2 Robin Guest   Posts: n/a You need to get familiar with the most amazing software, plasma-pong, http://www.plasmapong.com With the sandbox feature you might be able to set up a directional source but no chance of solid/solid interaction.

 May 31, 2008, 10:42 Re: Real-time CFD? #3 Pauli Guest   Posts: n/a Yes, it's called conservation of momentum and energy. The rest should just be a coding exercise. Think in terms of a billiard ball problem. Take the bullet's kinetic energy & momentum vector and transfer it to "N" particles of the apple. Add in a randomly seeded dispersion cone & you should be rocking.

 May 31, 2008, 13:20 Re: Real-time CFD? #4 gocarts Guest   Posts: n/a If you're after physics simulations that look good (qualitative over quantitative) then particle simulations (as used in CGI movie effects) should be good enough. Real-time calculations for limited "physics in a box" are possible on GPUs. For more details try: http://www.symscape.com/blog/real_time_simulation

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