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Old   February 9, 2011, 09:40
Default homogenous/inhomogeneous model
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Hi all.

I am simulating a free-surface flow and using the homogeneous model (according to the documentation it says that free surfaces flow are a paradigmatic example of a homogeneous flow if the interface is well resolved). But let`s suppose that (like my case) the fluid has to go through an obstacle and tends to accelerate after that obstacle. Do you think that inhomogeneous model could be a good approach (also to have a better convergence)?

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Old   February 9, 2011, 18:34
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The choice between homogeneous and not has nothing to do with obstacles and accelerations. The choice is made as to whether a single velocity field will adequately capture both phases. Providing the interface remains clear homogeneous should be good. If the interface is unclear (eg foamy or bubbly flow) then consider inhomogeneous.
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Old   February 10, 2011, 13:34
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Ok.Many thanks.
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