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Automatic remeshing with deformed geometry/moving mesh singularity

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Hi,

I am trying to model a sphere that changes phase from the outer radius moving inwards, but I'm having some difficulties. Using deformed geometry I can simulate it up to a certain time, however after that the mesh deformation becomes too large, causing the simulation to stop converging.

1. Should I use deformed geometry or moving mesh for this?

2. I tried using automatic remeshing but regardless of the condition I use, it instantly reaches a singularity after remeshing:
The following feature has encountered a problem:
Repeated error test failures. May have reached a singularity.
Time : 0.5516356412745114
Last time step is not converged.
- Feature: Automatic Remeshing 1 (sol1/t1/ar1)
How can I stop it reaching a singularity?


I added a picture showing what the mesh looks like after remeshing, which seems fine, so I'm not sure why it reaches a singularity. I already tried varying the time steps and mesh sizes, with same results.


1 Reply Last Post Feb 25, 2016, 10:18 p.m. EST
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Hello Sebastiaan Klaasse

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Posted: 9 years ago Feb 25, 2016, 10:18 p.m. EST
Hi,
Have you find answer for your question?
I also have a same problem!
Do you have other approach?
Thanks in advance.

Best regards,
Zhang Wei

Hi, Have you find answer for your question? I also have a same problem! Do you have other approach? Thanks in advance. Best regards, Zhang Wei

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