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Showing results 1 to 8 of 8 Search took 0.00 seconds. Search: Posts Made By: ghorrocks

Forum: CFX May 22, 2013, 07:19

Replies: 41 symmetry boundary conditions in cfx Views: 41,362 Posted By ghorrocks This is covered in the DesignModeller tutorials.... This is covered in the DesignModeller tutorials. Also, the Geometry and meshing forum is designed for DesignModeller questions.

Forum: CFX May 22, 2013, 05:58

Replies: 41 symmetry boundary conditions in cfx Views: 41,362 Posted By ghorrocks All it does it to make the default domain in the... All it does it to make the default domain in the CFX-Pre section solid or fluid. You can overwrite it if it is wrong (or you did not bother setting it).

Forum: CFX May 21, 2013, 19:21

Replies: 41 symmetry boundary conditions in cfx Views: 41,362 Posted By ghorrocks Moody software....... The mind boggles with the... Moody software....... The mind boggles with the implications of that :)

Forum: CFX May 20, 2013, 18:13

Replies: 41 symmetry boundary conditions in cfx Views: 41,362 Posted By ghorrocks Your comment is correct - many times the... Your comment is correct - many times the deviation is in an unimportant part of the flow and will not affect things. But if it is in a critical part of the flow it will. It is a case of caveat emptor...

Forum: CFX May 16, 2013, 18:46

Replies: 41 symmetry boundary conditions in cfx Views: 41,362 Posted By ghorrocks It absolutely does cause inaccuracy! This error... It absolutely does cause inaccuracy! This error message is telling you to go back to your mesh and fix up the symmetry surface and make it flat.There is a good reason why the tolerance is 1 degree.

Forum: CFX June 14, 2009, 20:34

Replies: 41 symmetry boundary conditions in cfx Views: 41,362 Posted By ghorrocks Hi, Also keep in mind the fact that when you... Hi, Also keep in mind the fact that when you try to convince CFX to do a 2D axisymmetric simulation using a small angled wedge you have two competing requirements - You need the wedge angle small...

Forum: CFX June 11, 2009, 18:35

Replies: 41 symmetry boundary conditions in cfx Views: 41,362 Posted By ghorrocks The symmetry boundary simply makes the gradients... The symmetry boundary simply makes the gradients normal to the surface zero. It does not "know" anything about the remainder of the mesh. The rotationally periodic boundary simply makes the values...

Forum: CFX June 11, 2009, 06:49

Replies: 41 symmetry boundary conditions in cfx Views: 41,362 Posted By ghorrocks Hi, 1) You do not need to use rotationally... Hi, 1) You do not need to use rotationally periodic boundaries for an axisymmetric simulation. Normal symmetry boundaries are required for 2D axisymmetric simulations. If you use rotationally...

Showing results 1 to 8 of 8

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