homogenous/inhomogeneous model
 

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)?

Regards

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.

Ok.Many thanks.
Regards