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-   -   3D centrifugal pump y+ ? (http://www.cfd-online.com/Forums/fluent/72776-3d-centrifugal-pump-y.html)

spk February 17, 2010 14:06

3D centrifugal pump y+ ?
 
Hi guys,

I try to mesh a 3D centrifugal pump! Using spalart-allmaras model y+ has to be 1 or greater than 30. I made a boundary layer near the blades fine in order to achieve the y+ = 1. Because of the huge number of cells i cant do the same for the other walls of the pump. That will affect the solution? Is there anything else that i have to care for using this model?

Thanks :)

Jade M April 30, 2010 14:23

The only way to know if the solution is affected is to demonstrate grid independence.


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