Model and Boundary Conditions for Flow around a Bullet in Ansys Fluent
Hello Everyone
I am working on a project to study the Flow around Long Range Bullets particularly Remington Fireball. I thought of simulating the flow in Ansys Fluent but I have no idea which boundary conditions and which model will give a realistic estimate of Drag on the bullet in such supersonic conditions Any ideas and References would be Deeply appreciated Thank you |
Perhaps this may give you a good starting point:
https://confluence.cornell.edu/displ...+Specification I imagine your problem will be a somewhat similar setup. |
Quote:
https://www.youtube.com/watch?v=gnhbhpwTx1c so the above analysis comes short i guess |
Quote:
The skin friction does not contribute much to the drag compared to across the shockwaves, so it really doesn't matter if you use a turbulence model. There's two ways you can setup the problem. With the bullet stationary and some sort of supersonic inlet, or you can explicitly specify a velocity for the bullet and use a simple pressure inlet (with pressure equal to atmospheric pressure). I recommend the later. |
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