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-   -   Estimation of First Grid Point Near Wall (http://www.cfd-online.com/Forums/fluent/40729-estimation-first-grid-point-near-wall.html)

Amer Mahmood April 24, 2006 13:00

Estimation of First Grid Point Near Wall
 
Hi, Iam simulating flow in a rectangular channel and using enhanced wall treatment in Fluent. For estimation of Ist grid point (y+=1) I am using the following relation:

y+=(density)*(yp)*(turbulent velocity)/(dynamic viscosity) turbulent velocity = average velocity * SQRT(Cf/2)

where yp = distance from the wall

Cf = friction coefficient

Is this process fine???


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