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

Forum: CFX December 19, 2011, 01:31

Replies: 19 In CFX workbench, which surface, i have to select Views: 4,130 Posted By ghorrocks The temperature gradient does not cause the mass... The temperature gradient does not cause the mass error. It would be shear of the flow rising from the body. If you stop the flow you should stop the mass error. You do not set up boundary layers...

Forum: CFX December 18, 2011, 16:50

Replies: 19 In CFX workbench, which surface, i have to select Views: 4,130 Posted By ghorrocks How well controlled it is has nothing to do with... How well controlled it is has nothing to do with laminar or turbulent. It is quite possible the convective plume coming off the body trips to turbulent flow. Have you calculated the Rayliegh number...

Forum: CFX December 18, 2011, 05:19

Replies: 19 In CFX workbench, which surface, i have to select Views: 4,130 Posted By ghorrocks Can you post an image? What do you mean by... Can you post an image? What do you mean by the "convective force"? The convection on the body is going to result in a microscopic force on the bodies weight. This would only be of interest to...

Forum: CFX December 17, 2011, 05:31

Replies: 19 In CFX workbench, which surface, i have to select Views: 4,130 Posted By ghorrocks What are you trying to achieve with your model? I... What are you trying to achieve with your model? I do not understand what you are trying to do.

Forum: CFX June 2, 2010, 18:33

Replies: 19 In CFX workbench, which surface, i have to select Views: 4,130 Posted By ghorrocks As I said, the easiest way is to insert a thin... As I said, the easiest way is to insert a thin layer of mesh and define it as a solid body, with a thermal conductivity chosen to give the right resistance for the thickness.

Forum: CFX June 2, 2010, 08:34

Replies: 19 In CFX workbench, which surface, i have to select Views: 4,130 Posted By ghorrocks Not easily, best option is to model in a thin... Not easily, best option is to model in a thin layer and give it a thermal conductivity designed to give the right thermal resistance. It is quite easy in V12 and does not require additional mesh so a...

Forum: CFX May 29, 2010, 17:54

Replies: 19 In CFX workbench, which surface, i have to select Views: 4,130 Posted By ghorrocks Precisely. So don't do it, it is wrong. If... Precisely. So don't do it, it is wrong. If there is a thermal resistance then put it in as a thermal resistance on the surface. CFX V12 supports thermal resistances on interfaces.

Forum: CFX May 29, 2010, 07:21

Replies: 19 In CFX workbench, which surface, i have to select Views: 4,130 Posted By ghorrocks If you are referring to ANSYS Mechanical then... If you are referring to ANSYS Mechanical then this sounds like a bad idea. CFX can run thermal stuff just fine, so forget about ANSYS Mech - especially on this forum, we are CFX fans here! Jordi -...

Showing results 1 to 8 of 8

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