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how to modify the equation in Fluent

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October 17, 2019, 00:19	how to modify the equation in Fluent	#1
masiro New Member jielei Join Date: Dec 2018 Posts: 6 Rep Power: 7	hello everyone I want to modify the momentum equation. The first item and second item on the left side of equation have sigma and sigma^2, respectively. By the way, the sigma is variable instead of constant. What should I do can modify the equation. Thank.

October 17, 2019, 00:25		#2
masiro New Member jielei Join Date: Dec 2018 Posts: 6 Rep Power: 7	I know the udf can be used as a source term (like Su (the last item on the right side of equation)), but how to change the left side of equation.

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