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September 28, 2012, 08:00
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Defining a source term
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New Member
Join Date: May 2012
Posts: 8
Rep Power: 13  |
Hello,
 I’m trying to create an UDF which define an ultrasonic source term in the momentum equation, and I have the analytical expression of the radiation pressure/ volume :S = a exp(- r2) exp (-x2) ; where “a” is a constant, “ r” is the radial component ant” x” is the axial one. The function must return an x-momentum source term that varies with x and r position The problem here is that the expression is not depending on x-velocity Vx so we can set dS[eqn] to dS/dVx Do you have please any idea about haw can I write this UDF in a different way from that of the UDF manual-section 4.3.15 Thank you, I will be grateful
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