How to estimate the first layer thickness on a wall when using HiFiLES?

[popstar0426]

Hi:
The wall distance is normally required around y+ =1 in DNS or Wall Resolved LES.
How about the mesh requirement in HiFiLES?
How to estimate the first layer thicknes on a wall when using HiFiLES?

Best regards!
Yue

[mlopez14]

Here is a neat calculator for finding the width of the element closest to the no-slip boundary.
http://www.pointwise.com/yplus/
This calculator is intended for 2nd order methods, so multiply whatever width this calculator suggests by (p+1)/2, where p is the degree of the polynomial you are using to approximate the solution.

In this way, the first degree of freedom will be at a distance close to y+

[popstar0426]

Can HiFiLES solve a flow with Ma =0.025?

Best regards!

[mlopez14]

Yes, using the Rusanov flux.

On Thu, Oct 15, 2015 at 8:59 PM, popstar0426 notifications@github.com
wrote:

Can HiFiLES solve a flow with Ma =0.025?

Best regards!

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