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Forum: CFX

January 25, 2012, 09:57

Replies: 9

Force calculation help

Views: 1,815

Posted By tomwalker

I haven't checked the pressure integrals but...

I haven't checked the pressure integrals but looking at the force on the surface of the whole body it has given me a reasonable looking results :D

Thanks for your help

Tom Walker

Forum: CFX

January 25, 2012, 09:42

Replies: 9

Force calculation help

Views: 1,815

Posted By tomwalker

oh right sorry, miscommunication there Yes...

oh right sorry, miscommunication there

Yes that is what my equation looks like using x because that is the direction of flow and the area is front (because that is the domain that is on the front...

Forum: CFX

January 25, 2012, 09:37

Replies: 9

Force calculation help

Views: 1,815

Posted By tomwalker

The only value i need out of ansys is the value...

The only value i need out of ansys is the value for the force acting on the body in the same direction as the air flow (i.e. the drag force) using this value I can then use:

Cd =...

Forum: CFX

January 25, 2012, 09:30

Replies: 9

Force calculation help

Views: 1,815

Posted By tomwalker

i was going to work out the drag coefficient in...

i was going to work out the drag coefficient in excel later i just needed ansys to measure the drag force so that I can incorporate it into my equation

Thanks

Forum: CFX

January 25, 2012, 08:38

Replies: 9

Force calculation help

Views: 1,815

Posted By tomwalker

Force calculation help

I have set up an SST flow to simulate the air flow around an underground train. With these settings I am trying to calculate the drag coefficient of the train but when I do an expression to calculate...

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