boundary condition for free surface

subbu1 · January 12, 2010, 06:10

hai,
i am simulating an underwater vehicle, which is in the form of ellipsoid. For this i modeled one half of the ellipsoid in a rectangular box, ellipsoid half on one face of rectangular box. now my problem is, I want the simulation to be so that it should represent the vehicle at a given depth from surface of water.
My question is what boundary condition is to be applied to the face of rectangular box representing the free surface.
will opening condition do the trick?
If so what sub condition in that?

please somebody help me with this.

i have attached the geometry model with this.

Roland R · January 12, 2010, 07:00

hello,

The basic settings of the free surface flow are described perfectly in the CFX tutorial. (It's called "2D_Bump"). Based on this .cfx file you can define the most important setting to your model...

Regards
Roland

subbu1 · January 13, 2010, 08:07

thank u ronald, i will give a shot.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
ATTENTION! Reliability problems in CFX 5.7	Joseph	CFX	14	April 20, 2010 15:45
boundary condition at free surface	mike	Fidelity CFD	3	June 8, 2006 06:23
Spectral Method Boundary condition	Deepak	Main CFD Forum	1	February 25, 2004 09:48
The Boundary Condition about the Flat Plate	boing	Main CFD Forum	1	January 6, 2002 16:53
solid surface boundary condition	qlr	Main CFD Forum	4	November 2, 1999 23:09

January 12, 2010, 07:00		#2
Roland R Senior Member Roland Rakos Join Date: Mar 2009 Posts: 131 Rep Power: 17	hello, The basic settings of the free surface flow are described perfectly in the CFX tutorial. (It's called "2D_Bump"). Based on this .cfx file you can define the most important setting to your model... Regards Roland

January 13, 2010, 08:07		#3
subbu1 New Member subbu Join Date: Jan 2010 Posts: 3 Rep Power: 16	thank u ronald, i will give a shot.