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Forum: Main CFD Forum

December 3, 2012, 07:47

Replies: 17

Doubts about turbulence in a micro channel

Views: 2,004

Posted By FMDenaro

yes, provided that dx+, dy+, dz+ are everywhere...

yes, provided that dx+, dy+, dz+ are everywhere O(1) and the numerical method is at least second order accurate

Forum: Main CFD Forum

December 3, 2012, 07:02

Replies: 17

Doubts about turbulence in a micro channel

Views: 2,004

Posted By FMDenaro

I agree, DNS means you are solving the 3D problem

I agree, DNS means you are solving the 3D problem

Forum: Main CFD Forum

December 3, 2012, 04:07

Replies: 17

Doubts about turbulence in a micro channel

Views: 2,004

Posted By FMDenaro

yes, if you set a laminar flow, you set only the...

yes, if you set a laminar flow, you set only the molecular viscosity and if your grid is enough fine to catch all the wavelenght, if your flow develop locally turbulence, you will get it

Forum: Main CFD Forum

December 1, 2012, 11:08

Replies: 17

Doubts about turbulence in a micro channel

Views: 2,004

Posted By FMDenaro

I think that your Re number is so small that,...

I think that your Re number is so small that, even if the flow would be locally turbulent, you can perform a DNS.

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