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DLR-RY / TwoPhaseFlow

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Interface deformation #35

Closed Bumble-7 closed 2 years ago

Bumble-7 commented 2 years ago

Dear Authors, I am trying to simulate nucleate boiling using multiRegionPhaseChangeFlow. With the setting of Isoadvection + PLIC the bubble deforms once it leaves the surface. I have changed the schemes to upwind, but there is not much difference. On the other had, if I use MULES+isosurface, the bubble shape is pretty good, but seems to be very inaccurate. And the simulation diverges if I use linear or TVD schemes. I am attaching the clips for the reference.

Isoadvection+PLIC https://youtu.be/uUPw06IqmIk

MULES+isosurface https://youtu.be/JMrxwp7jOuE

I will be glad to know if there are any inputs you have from your experience to remove this bubble deformation. Thank you

Bumble-7 commented 2 years ago

Resolved by changing the curvature model from gradAlpha to RDF.