rotatingWall with interFoam

HenningHAW · November 20, 2010, 13:14

Hello,

I would like to use the rotatingWallVelocity BC with the interFoam solver to simulate a kind of centrifuge.

In */0/U I set for my rotatingWall patch

type rotatingWallVelocity;
origin (0 0 0);
axis (0 0 1);
omega 18;

The solver seems to run without problems but if I watch the results in Paraview, the rotating Wall has no effect to the fluid. But when plotting the velocity of the rotatingWall - patch everything seems to work. The connection between wall and fluid in not working.

So, what is my mistake??? Is there a missing entry? I am sorry if this is a stupid question......

greetings,

Henning

T.D. · November 30, 2010, 09:24

Quote:

Originally Posted by HenningHAW

Hello,

I would like to use the rotatingWallVelocity BC with the interFoam solver to simulate a kind of centrifuge.

In */0/U I set for my rotatingWall patch

type rotatingWallVelocity;
origin (0 0 0);
axis (0 0 1);
omega 18;

The solver seems to run without problems but if I watch the results in Paraview, the rotating Wall has no effect to the fluid. But when plotting the velocity of the rotatingWall - patch everything seems to work. The connection between wall and fluid in not working.

So, what is my mistake??? Is there a missing entry? I am sorry if this is a stupid question......

greetings,

Henning

Hi,
can you specify more the type of your Geometry in your flow? and where exactly you apply the rotatingWallVelocity to which patch ?

HenningHAW · December 13, 2010, 17:36

Hello T.D. ,
thank you for your reply and please excuse my late answer!

Meanwhile I found my mistake and in deed it was a stupid one...
I had a mistake in the convertToMeters entry in my blockMeshDict. The boundary layer had a thickness of one meter instead of one Millimeter.

My geometry a rotating plate with a constant flow of oil on its top side.

T.D. · December 14, 2010, 04:19

OK that's Good
Good Luck

T.D.

November 20, 2010, 13:14	rotatingWall with interFoam	#1
HenningHAW New Member H. Melles Join Date: Nov 2010 Posts: 2 Rep Power: 0	Hello, I would like to use the rotatingWallVelocity BC with the interFoam solver to simulate a kind of centrifuge. In */0/U I set for my rotatingWall patch type rotatingWallVelocity; origin (0 0 0); axis (0 0 1); omega 18; The solver seems to run without problems but if I watch the results in Paraview, the rotating Wall has no effect to the fluid. But when plotting the velocity of the rotatingWall - patch everything seems to work. The connection between wall and fluid in not working. So, what is my mistake??? Is there a missing entry? I am sorry if this is a stupid question...... greetings, Henning

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December 13, 2010, 17:36		#3
HenningHAW New Member H. Melles Join Date: Nov 2010 Posts: 2 Rep Power: 0	Hello T.D. , thank you for your reply and please excuse my late answer! Meanwhile I found my mistake and in deed it was a stupid one... I had a mistake in the convertToMeters entry in my blockMeshDict. The boundary layer had a thickness of one meter instead of one Millimeter. My geometry a rotating plate with a constant flow of oil on its top side.

December 14, 2010, 04:19		#4
T.D. Senior Member Join Date: Sep 2010 Posts: 226 Rep Power: 17	OK that's Good Good Luck T.D.