Learning Forum

[지완 서]

I tried two cases.

one - structured grid

two - unstructured grid

 

I defined the phase of the bubble using the cell region option and patch.

 

When a bubble rises, surface of a bubble is fine(sharp) in structured grid.

But in unstructured grid, the surface of a bubble is wrinkled.

The two phase simulation is stable in the structured grid...(I think)

This problem arises in the OpenFOAM simulation (same situation).

 

how can i make a sharp surface in unstructured grid simualtion?

 

My English is bad. Thanks :)

 

case2

case1

 

[Rob]

How do the two meshes compare? With higher order schemes (discretisation) and Compressive or Geo-reconstruct I'd expect the two solutions to be near enough the same.