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Low Re model

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Old   February 6, 2002, 03:43
Default Low Re model
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Julie Polyakh
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Hi!

For my case the Re number is 974. Can I apply the low Re turbulence model?

Thanks,

Julie
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Old   February 6, 2002, 04:17
Default Re: Low Re model
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HVN
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Hello,

To use a low-Re model, you must have a y+ ~ 1 for the near-wall cell. y+ is a local Re number near the wall.

With Re number, you could decide if you could use a model of turbulence. And after that, following your mesh, you could decide to use a low or a high Re model. You could read that in the methodology guide of Star-CD.

HV
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Old   February 6, 2002, 06:55
Default Re: Low Re model
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Ossi
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As it may be obvious from the answer above, the global Reynolds number of a flow has nothing to do with the Low-Reynolds number turbulence models. The low-Re number name comes from the y+ value (local Re number) which has to be set to close to one.
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