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Old   November 17, 2007, 16:59
Default Questions concerning Meshing.
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Daniel
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I have some Questions concerning Meshing.

As I know, the Subdivisions of the Near-Wall Region can be divided into 4 as follows, namely: viscous sublayer, buffer layer or blending region, fully turbulent region or loglaw region, outer layer.

Suppose I am using LES and NearWall Model Approach, I have to set the 1st grid point near the wall around y+=5. but what's then?

what's the stretching ratio of mesh normal to the wall and parallel with the wall (including along the flow and perpendicular to the flow)?

is there a constraint of the stretching ratio to keep it not larger than a certain number or what?

how many grid points do I need to mesh in buffer layer or blending region? and how many in fully turbulent region or loglaw region? outer layer?

Any help would be greatly appreciated.

Daniel
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Old   November 26, 2007, 04:53
Default Re: Questions concerning Meshing.
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Daniel
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Could anyone help me on this topic? Thanks
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