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Forum: CFX

April 28, 2016, 20:56

Replies: 7

Circular cylinder vortex shedding/strouhal number too high

Views: 3,085

Posted By ghorrocks

The first part of the statement (that the flow is...

The first part of the statement (that the flow is faster than it should be due to blockage factor) is pretty elementary. The second part of the statement (that it will result in too high Strouhal...

Forum: CFX

August 7, 2013, 00:17

Replies: 7

Circular cylinder vortex shedding/strouhal number too high

Views: 3,085

Posted By ghorrocks

If the flow is 2D then a 2 element thick mesh can...

If the flow is 2D then a 2 element thick mesh can be used for SST models. But not if it is a 3D turbulent flow.

Both LES and SST work fine with tet grids. You will have problems getting the...

Forum: CFX

August 6, 2013, 19:05

Replies: 7

Circular cylinder vortex shedding/strouhal number too high

Views: 3,085

Posted By ghorrocks

You cannot do LES with a mesh only 2 elements...

You cannot do LES with a mesh only 2 elements thick. You need a full 3D mesh.

This question is an FAQ: http://www.cfd-online.com/Wiki/Ansys_FAQ#Why_are_my_results_inaccurate.3F

Are you in a Re...

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