How to interpolate 'mesh.V()'

victorconan · August 2, 2012, 08:47

I wanna get a valid term to multiply by fvc::snGrad(p) to get the presseure on the surface of a cell. Literally, 'mesh.V()' should be interpolated, but fvc::interpolate(mesh.V()) is invalid, how can I realize it? Please help me!
I tried to use: volScalarField Vmesh(mesh.V()); fvc::snGrad(p) * fvc::interpolate(Vmesh). but it is invalid as well.

Bernhard · August 3, 2012, 02:44

I don't really get it. Why can't you fvc::interpolate(p) to get the pressure at the face? Am I missing something here?

victorconan · August 3, 2012, 04:25

Quote:

Originally Posted by Bernhard

I don't really get it. Why can't you fvc::interpolate(p) to get the pressure at the face? Am I missing something here?

Sorry, I made a mistake. Actually, I wanna get: interpolate(grad(p))*mesh.V(), which is flux instead of pressure, similar to pEqn.flux() but I wanna an interpolated value; so I think maybe I can get this by fvc::snGrad(p) * interpolate(mesh.V()); but I am confused now how to interpolate mesh.V().
Could u help me? THANKS～

August 2, 2012, 08:47	How to interpolate 'mesh.V()'	#1
victorconan New Member Lun Yu Join Date: Aug 2012 Posts: 8 Rep Power: 13	I wanna get a valid term to multiply by fvc::snGrad(p) to get the presseure on the surface of a cell. Literally, 'mesh.V()' should be interpolated, but fvc::interpolate(mesh.V()) is invalid, how can I realize it? Please help me! I tried to use: volScalarField Vmesh(mesh.V()); fvc::snGrad(p) * fvc::interpolate(Vmesh). but it is invalid as well.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Interpolate in some points	ivan_cozza	OpenFOAM Post-Processing	2	April 22, 2009 08:58
Interpolate a boundary condition	Xabi	OpenFOAM Pre-Processing	0	April 9, 2009 04:23
overflow when interpolate initial result	richard	CFX	1	June 11, 2008 07:36
interpolate with batch file	Claudia	CFX	13	June 21, 2007 08:30
interpolate error of boundary profile	justin	FLUENT	5	June 5, 2007 04:01

August 3, 2012, 02:44		#2
Bernhard Senior Member Bernhard Join Date: Sep 2009 Location: Delft Posts: 790 Rep Power: 21	I don't really get it. Why can't you fvc::interpolate(p) to get the pressure at the face? Am I missing something here?