CFD Online Discussion Forums

CFD Online Discussion Forums (
-   CFX (
-   -   question about cfx wall function (

piyo November 21, 2012 13:47

question about cfx wall function
Hi, Everybody,

Do you have an idea about how CFX judges the wall region? In that case, I can notice calculated value on specific nodes are solved by these governing equations or modelled by wall function.

In CFX moddeling guide, it gives a rough ideal which can be determined by or close to boundary thickness. However, I don't think the solver will use this very rough estimation.

It is also suggested by theory guide that the upper limit of Y+ is a function of device Reynolds number, but no further information.

Thank you

ghorrocks November 21, 2012 18:17

I do not understand your question. Are you asking about how the rough wall model works? Or how it chooses what wall condition to use? Or what y+ ranges is suitable?

All times are GMT -4. The time now is 20:58.