how to set up a wall boundary condition according to calculated wall shear stress?

gameoverli · May 19, 2009, 01:49

Hi, Foamers,

I am trying to do hurricane boundary layer CFD simulation using OpenFoam, one of the problems is setting bottom boundary condition.

I am trying to set up a "partial-slip" wall boundary condition for the simulation. according to the empirical relationship, the surface stress is calculated based on near-surface velocity. this makes wall boundary condition in OpenFoam is invalid here.

I notes that there is a partial slip boundary condition in OpenFoam, but I can not fig out how this is implemented since the description for this boundary condition in User's guide is vague.

any suggestion?

thanks a lot

zhoubinwx · May 21, 2009, 09:28

Hi,

I am in Tongji University, and I may help you for this partial slip boundary condition.

I use msn: zhoubinwx@hotmail.com

Bin

May 19, 2009, 01:49	how to set up a wall boundary condition according to calculated wall shear stress?	#1
gameoverli New Member Sam Lee Join Date: Mar 2009 Location: Shanghai, P.R.China Posts: 4 Rep Power: 17	Hi, Foamers, I am trying to do hurricane boundary layer CFD simulation using OpenFoam, one of the problems is setting bottom boundary condition. I am trying to set up a "partial-slip" wall boundary condition for the simulation. according to the empirical relationship, the surface stress is calculated based on near-surface velocity. this makes wall boundary condition in OpenFoam is invalid here. I notes that there is a partial slip boundary condition in OpenFoam, but I can not fig out how this is implemented since the description for this boundary condition in User's guide is vague. any suggestion? thanks a lot

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May 21, 2009, 09:28		#2
zhoubinwx Senior Member ZHOU Bin Join Date: Mar 2009 Location: Nanjing/Torino, Nanjing/Piemente, China/Italy Posts: 164 Rep Power: 17	Hi, I am in Tongji University, and I may help you for this partial slip boundary condition. I use msn: zhoubinwx@hotmail.com Bin