How to fix the Source term ? -- CFD Online Discussion Forums

November 21, 2022, 00:05	How to fix the Source term ?	#1
Kummi Senior Member Kumaresh Join Date: Oct 2016 Posts: 349 Rep Power: 11	Hello everyone, In my work, the source term ( $\Phi$ ) in 3D problem was extracted from the 2D case. The equation in 3D is given as, $\triangledown \cdot G = \Phi$ ------ $Unit = kg/m^{3}s$ $\Phi$ is the gas production rate, represents the rate of steam generation at the boiling plane. But the calculated source from 2D carries the unit of $kg/m^{2}s$ $Mass balance = \rho \omega \frac{dx}{dt}$ Physically, the source term $\Phi$ from 3D and mass balance from 2D are same. But when it comes to numerical implementation, I'm confused as how to really match the source term in terms of units. Kindly someone share the ideas about this problem. Thank you

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