Fluctuating pressure field

vw.cfd · October 16, 2009, 09:47

Hi,

I am performing a two phase simulation with rasCavitatingFoam for a 'pie' shaped section of a cylinder. I have a few questions reagarding the fluctuating behaviour of the pressure field at the inlet.

Why do you think the pressure field is still fluctuating although the residuals look small enough?

Can this be overcome by using a non-reflective boundary condition at inlet? If so is it possible to implement the same with openfoam.

Suggestions are welcome.

ThanX!!!

Varun

p.s: The courant number used for the computuation is 0.2 and i have employed a k-omega+SST turbulence model.

Bertrand · February 8, 2011, 06:12

Hello,

Did you find any answer about a non-reflective boundary condition? Because I would be interested as well.

Regards,

Bertrand

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February 8, 2011, 06:12		#2
Bertrand New Member Bertrand Delvaux Join Date: Apr 2010 Posts: 29 Rep Power: 16	Hello, Did you find any answer about a non-reflective boundary condition? Because I would be interested as well. Regards, Bertrand