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Define an equation for the inlet velocity profile

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Old   January 9, 2007, 02:14
Default Define an equation for the inlet velocity profile
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Alshroof
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Dear CFX guys; I am trying to define an equation for the 2D inlet velocity profile. I am defined two equations for the vertical coordinate where I'd like to divide the vertical coordinate to two stages, since i have for each segment different equation.

I wrote the equation using the CEL function but my problem is how to tell the CFX function to use equation 1 for the 1st segment and equation 2 for the other. for instance from 0<y<1 i need it to read equation 1. and from 1<y<10 to read equation 2.
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Old   January 9, 2007, 04:33
Default Re: Define an equation for the inlet velocity prof
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Michael B
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Use step function. The step function is used as an example in the documentation to set the initial pressure in a water/air with sealevel case. Check that out.
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Old   January 9, 2007, 18:59
Default Re: Define an equation for the inlet velocity prof
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Maryam
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I have the same problem and tried to use the profile data, however till now I've not been able to set it correctly.
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Old   January 9, 2007, 20:34
Default Re: Define an equation for the inlet velocity prof
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Osama
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I solved my problem in different way, i generate two surfaces for the inlet and i defined an equation for each surface. Hope that will help.
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