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Differences between OF2.2.2, OF2.4.0 and OF3.0.1

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Old   March 29, 2016, 07:23
Default Differences between OF2.2.2, OF2.4.0 and OF3.0.1
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Hi all,

I am running the same case on 3 different servers, each with different OF version (2.2.2, 2.4.0 and 3.0.1). The cases resemble a stratified channel flow using a solver that was adapted from the BuoyantBoussinesqPisoFoam solver.

The simulations results differ (I examined vertical profiles of p_rgh in the center of the domain) after 10 time steps (0.5 sec, CFL~0.2) when 2nd order convection schemes are employed. I have examined SuperBee, vanleer, vanalbada and quick

When I Use first order schemes (upwind) or remove the non linear terms I get identical results for all OF versions.
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