Second order momentum equation

Laurens · March 5, 2024, 03:38

Hi All,

A paper I am reading states that they have best agreement with experimental results using "a second-order scheme for the momentum equation". Where can I check what I am using and how do I change it to second-order for the momentum equation?

Thank you!

Laurens · March 6, 2024, 06:54

For anyone in the future who is interested in this:

Case setup -> Solver parameters -> Convective flux scheme -> Momentum
If Convective flux scheme is Flux blending (default):
The flux blending fraction for FV scheme can be set between 0.5 and 1. The manual will explain more, but basically 0.5 is second-order central differencing and 1 is first-order upwind.

March 5, 2024, 03:38	Second order momentum equation	#1
Laurens New Member Join Date: Dec 2023 Posts: 9 Rep Power: 2	Hi All, A paper I am reading states that they have best agreement with experimental results using "a second-order scheme for the momentum equation". Where can I check what I am using and how do I change it to second-order for the momentum equation? Thank you!

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March 6, 2024, 06:54		#2
Laurens New Member Join Date: Dec 2023 Posts: 9 Rep Power: 2	For anyone in the future who is interested in this: Case setup -> Solver parameters -> Convective flux scheme -> Momentum If Convective flux scheme is Flux blending (default): The flux blending fraction for FV scheme can be set between 0.5 and 1. The manual will explain more, but basically 0.5 is second-order central differencing and 1 is first-order upwind.