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Search: Posts Made By: tango711
Forum: CFX July 18, 2012, 14:02
Replies: 16
Views: 3,373
Posted By tango711
Yes, the whole domain is rotating including the...

Yes, the whole domain is rotating including the inner wall and I applied a counter rotating wall in the outer wall so that I can model it as if it were stationary.

I am doing this as a check,...
Forum: CFX July 18, 2012, 12:27
Replies: 16
Views: 3,373
Posted By tango711
Hello Alexander, I set my minimum iterations...

Hello Alexander,

I set my minimum iterations to 100 and I ended up with stranger results than previously; now the vectors change direction twice as in Figure H.

Would having large diameter...
Forum: CFX July 18, 2012, 10:59
Replies: 16
Views: 3,373
Posted By tango711
Thank you for your advice Luis, I am...

Thank you for your advice Luis,

I am checking it in the laminar case. However, for when I try the large scale (the one with funny results) the solver finishes normally within 5 iterations. While...
Forum: CFX July 18, 2012, 10:08
Replies: 16
Views: 3,373
Posted By tango711
Yes, it is the second part. I am wondering if the...

Yes, it is the second part. I am wondering if the simulation would be correct if instead of applying a rotational wall boundary condition on the inner wall, I have the whole domain rotate and apply...
Forum: CFX July 17, 2012, 14:34
Replies: 16
Views: 3,373
Posted By tango711
Thanks for the reply lffabiani, No in...

Thanks for the reply lffabiani,

No in reality I this domain is not rotating, only the inner wall sufraces. This is a sub domain of a larger domain which makes up a pump seal.

My inlet and...
Forum: CFX July 17, 2012, 13:30
Replies: 16
Views: 3,373
Posted By tango711
To validate what I have done I am taking a simple...

To validate what I have done I am taking a simple case of two concentric cylinders and see what happens where when I rotate the domain (Figure A) and apply a counter rotating condition on the outer...
Forum: CFX July 17, 2012, 13:15
Replies: 16
Views: 3,373
Posted By tango711
Applying Rotational Boundary Condition on Surface with Radial Wall

Hello,

I am new to the world of CFD and I have to say that this forum has been a great asset in over coming many of the issues I had faced, many thanks are due.

Up to now I have been stuck in a...
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