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Old   December 13, 2001, 22:58
Default DNS software?
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As I've read Direct Numerical Simulation (DNS) solves the N-S equations without any approximation.

I'm a real newbie and would like to know if there exists software available, comercial or not to solve flows in closed domains, laminar and turbulent.

Thanks in advance for any comment.

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Old   December 20, 2001, 00:51
Default Re: DNS software?
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My friend got a DNS code developed, has been publishing papers for more than 10 yrs. But I don't think anyone will give you a robust DNS code for free Can you be more specific about what kind of application you wanna use the DNS code?

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Old   December 20, 2001, 12:21
Default Re: DNS software?
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I would like to model laminar flowing fluids containing small ammounts of particles. My interest is in counting them as exactly as possible when they impact a surface.

So far the code I have give me strange results and would like to try DNS.

My interest is purely academic, not commercial.

thnx for your answer.

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Old   December 20, 2001, 14:18
Default Re: DNS software?
Thomas P. Abraham
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Hello Newbie, If you are looking at laminar case, DNS approach or solving the normal Navier-Stokes Equations is the same.

The term, "DNS" is used when the turbulent effects are captured without resorting to any modeling of the turbulent effects.

Thanks, Thomas
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