flow around bullet
 

My name is Arthur, i'm newcomer. i'm student now. My final task is about flow around bullet, i have geometry of bullet, but i having problem to simulate it, can you help me please? what version Fluent that i shall use to simulate this? thank you very much!!!

Re: flow around bullet
 

Hi,

I think that the flow aroud a bullet is super sonic flow, isn't it?. This kind of flow, selecting Fluent solver is to be important. Fluent's version is not important(every version Fluent what were released before can calculate it(except FLUENT4)). Select "Coupled-Implicit" or "Coupled-Explicit". (Default solver is "Segregated" and this solver does not suit your problem. It is also able to calculate but the accuracy is not good for high mach number flow).

I recommend "Coupled-Explict", this solver is similar with RAMPANT.

Thank you

FJ

Re: flow around bullet
 

thanx, about that. but i have another problem, how about the equation of it's motion? How to use it in fluent?

Re: flow around bullet
 

Hi what is yuor aim about the equation of its motion? please explain about it.tank yuo. amir.

Re: flow around bullet
 

i mean how to simulate bullet so that it can moving towards and spinning

Re: flow around bullet
 

Hi I am not sure but i think that you should create a control valume and set bullet in it . yuo can use rotational motion for wall bc of bullet or its solid(in wall panel or solid panel).if you supposed that overseer det on bullet you can yus vilocity inlet for simulate its forward motion. by. Amir.