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How to include weakly compressible effect to fluent udf?

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Old   December 15, 2014, 23:07
Default How to include weakly compressible effect to fluent udf?
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Hello

I want to include weakly compressible effect which is M^2(dp/dt + u*dp/dx) in incompressible navier stokes equation in continutiy equation.

So i check UDF in FLUENT, I find the UDF example for source term which is DEFINE_SOURCE(name, cell, thread, dS, eqn).

However i don't know how to use it.

How can i express the deviation term in source term(dp/dt, u*dp/dx)?

Can you guys please help me??
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