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Old   July 24, 2010, 12:47
Default Calculate Force at different points in CFX Post
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Niraj Shah
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Hi,
I am simulating a flow over an aeroplane wing.
I want to find out the Aerodynamic forces at different points on the surface of the wing.

When I use the force calculator Force_X it just gives me the total force on the 2d surface that is my wing.

How do I find force at different points on this surface?

Thanks.
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Old   July 25, 2010, 06:21
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Glenn Horrocks
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There is no force at a point. Only a pressure and shear stress, and resolved over a point it gives zero force.
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Old   July 25, 2010, 11:11
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So if I wish to find Aerodynamic forces at different nodes, I basically cant?
Is it possible with FLuent or any other software?
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Old   July 25, 2010, 18:36
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If Fluent can do the impossible then maybe fluent can do it.

But seriously, you do not seem to understand what I am saying. Getting the force at a node is not physically meaningful. Only pressure and shear stress is meaningful. When pressure or shear stress is integrated over an area you then get a force.
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Old   July 26, 2010, 12:16
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Ohok I get it.
So is there anything that I can calculate at nodes on a surface?
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Old   July 26, 2010, 18:39
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Pressure and/or shear stress would be a good start.
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