regarding periodic boundary condition

m5edr · March 31, 2012, 02:53

Quote:

Originally Posted by Edu-R

Hi m5edr,

Did you solve the problem? I have the same problem and I don't know what causes or what can I do

Thanks in advance!

Regards

Pls explain which part you need
thanks

Edu-R · March 31, 2012, 07:31

Hi!

I have done a mesh with the match control option, and it works well, but when I try to make the zones periodic in Fluent it gives me the same message of your first post.

Regards

EDIT: Sorry, the message is the one that appears in the first post of discussion, not in your post. Thanks in advance!

m5edr · April 3, 2012, 02:17

Quote:

Originally Posted by Edu-R

Hi!

I have done a mesh with the match control option, and it works well, but when I try to make the zones periodic in Fluent it gives me the same message of your first post.

Regards

EDIT: Sorry, the message is the one that appears in the first post of discussion, not in your post. Thanks in advance!

this may help you
http://www.cfd-online.com/Forums/flu...oundaries.html
regrads

Edu-R · April 3, 2012, 05:29

Quote:

Originally Posted by m5edr

this may help you
http://www.cfd-online.com/Forums/flu...oundaries.html
regrads

Hi,

I have remeshed the geometry and I don't have the problem right now, but I will try this solution when the message appears again.

Thank you very much!

Regards

Marx · June 27, 2012, 08:05

Normally there could two reason for this error. First check the origin of rotation.
So how do we check, open the design in design modeler then use point entity to check the centre of rotation coordinate. u can even draw on the surface of your model and find the centre of rotation. (anyway works). if its rotating along z axis then get the x and y coordinate and place it in fleunt>cell zone condition> rotation axis origin.

if it does work then maybe its due to different number of cell on the face of the two surface. It a non conformal periodic.(https://www.sharcnet.ca/Software/Flu...ug/node186.htm) you have change the type of B.c from wall to interface then use Mesh Interface where you select the surfaces, check the periodic B.C set the angel offset and create periodic.

m5edr · October 14, 2012, 10:11

Quote:

Originally Posted by Marx

Normally there could two reason for this error. First check the origin of rotation.
So how do we check, open the design in design modeler then use point entity to check the centre of rotation coordinate.

I couldn't do this step .... could you explain this step in details
thanks in advance

March 31, 2012, 07:31		#22
Edu-R Member Edu Join Date: Sep 2009 Posts: 36 Rep Power: 16	Hi! I have done a mesh with the match control option, and it works well, but when I try to make the zones periodic in Fluent it gives me the same message of your first post. Regards EDIT: Sorry, the message is the one that appears in the first post of discussion, not in your post. Thanks in advance! Last edited by Edu-R; April 1, 2012 at 10:09.

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June 27, 2012, 08:05		#25
Marx New Member Marx Join Date: Jan 2012 Posts: 4 Rep Power: 14	Normally there could two reason for this error. First check the origin of rotation. So how do we check, open the design in design modeler then use point entity to check the centre of rotation coordinate. u can even draw on the surface of your model and find the centre of rotation. (anyway works). if its rotating along z axis then get the x and y coordinate and place it in fleunt>cell zone condition> rotation axis origin. if it does work then maybe its due to different number of cell on the face of the two surface. It a non conformal periodic.(https://www.sharcnet.ca/Software/Flu...ug/node186.htm) you have change the type of B.c from wall to interface then use Mesh Interface where you select the surfaces, check the periodic B.C set the angel offset and create periodic.