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Showing results 1 to 5 of 5 Search took 0.00 seconds. Search: Posts Made By: ghorrocks

Forum: CFX February 16, 2011, 19:40

Replies: 10 Forces and Torques in 2D Views: 2,210 Posted By ghorrocks Read the documentation about the numerical... Read the documentation about the numerical method. Control volume variables are stored at the nodes, but the calculations are done at the integration points as per the finite element method. Thus the...

Forum: CFX February 15, 2011, 16:48

Replies: 10 Forces and Torques in 2D Views: 2,210 Posted By ghorrocks force_x/y/z is the total force, pressure and... force_x/y/z is the total force, pressure and viscous effects are included. If you just want the pressure force then integrate the pressue over the surface.

Forum: CFX February 13, 2011, 05:56

Replies: 10 Forces and Torques in 2D Views: 2,210 Posted By ghorrocks Josh: It *might* improve numerical stability. If... Josh: It *might* improve numerical stability. If it is not a problem then it will make no difference, but if it is then using the correct extrusion depth will make your simulation converge faster (or...

Forum: CFX February 12, 2011, 05:30

Replies: 10 Forces and Torques in 2D Views: 2,210 Posted By ghorrocks Josh - the recommended thickness for 2D models is... Josh - the recommended thickness for 2D models is the element edge length of the smallest element. This makes for more robust numerics. You can set the extrusion length in the import options I think.

Forum: CFX February 12, 2011, 05:28

Replies: 10 Forces and Torques in 2D Views: 2,210 Posted By ghorrocks I was not aware the forces and torques disappear... I was not aware the forces and torques disappear in a 2D (1 element thick) model. Sounds strange. Are you sure you have set it up correctly? Try calculating the forces in CFD-Post. Hopefully that...

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