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Old   April 10, 2006, 05:41
Default turbulence
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hi, i have a very basic question. what happens when one tries to model a highly turbulent flow with pure Navier-Stokes equations - i.e. without any turbulence modeling?

normally Navier Stokes equations should hold even for turbulent cases, but the intense fluctuations that are inherent in turbulent flows make its use impossible. i want to know however what the practical consequences of using such a basic approach with turbulent flows are.

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Old   April 10, 2006, 08:53
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It's called DNS. Look it up on any CFD textbook.
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Old   April 10, 2006, 11:57
Default Re: turbulence
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thanks for the tip, i will take a look.
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