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Calculation of Drag Force per unit Length

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Old   January 10, 2008, 04:31
Default Calculation of Drag Force per unit Length
  #1
Mohammad Faridul Alam
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Hi,

I am running an unsteady simulation of flow past a 2D circular cylinder.

I wanna know the way to calculate Drag force per unit length (D/length) in CFX-post.

Thanks

Farid

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Old   January 10, 2008, 11:29
Default Re: Calculation of Drag Force per unit Length
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CycLone
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Calculate the drag. Divide by the length.
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Old   January 11, 2008, 02:39
Default Re: Calculation of Drag Force per unit Length
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Mohammad Faridul Alam
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Hi,

can you tell me for drag calculation which function I should use?
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Old   January 11, 2008, 17:12
Default Re: Calculation of Drag Force per unit Length
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CycLone
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Hi Mohammad,

You can use:

force_x()@boundary or force_y()@boundary or force_z()@boundary

You may need to do some trig to align it with your direction of motion if it isn't aligned with an axis. Replace "boundary" with the name of your boundary region or a surface group which includes all the relevant surfaces.

-CycLone

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Old   January 11, 2013, 08:19
Default terminal velocity
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adel
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adel.rezvanivandefanayi is on a distinguished road
hi every body
can help me about calculate drag cofficient and terminal velocity in a cyclone in fluent
thank you
adel.rezvanivandefanayi is offline   Reply With Quote

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