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Old   June 19, 2010, 14:29
Default Momentum source calculation
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Hi everyone,

I am trying to calculate the momentum source as shown -

source = mdot *(increase in velocity) /cell volume.

where, mdot = mass flow rate through each cell face.
cell volume = volume of each cell in the fluid zone, where source has to be applied.

The flow is steady and fluid is moving in a pipe in x direction.

When i give the calculated source value as x momentum source term in fluent, I am not getting the expected velocity increase.

Can anyone tell me is this the correct way of calculating momentum source

Thanks in advance,
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