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Problem in using the extrusion variables
Posted Aug 9, 2010, 4:05 a.m. EDT 0 Replies
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I will appretiate for that some one give me a guide for solving the coulped system by using extrusion variables in COMSOL v3.5.
My Model description:
1. I have 1D for channel, two 2-D models for backing layer and membrane
2. The dependent variables in 1D will be extruded to one of the boundary of 2-D backing layer. The sources terms of 1-D equation comes from the boundary flux of 2-D backing layer
3. the similar conditions happen between 2-D backing layer model and 2-D membrane model
My Solver setting:
1. stationary solver, UMPACK
2. relative tolerance: 1e-6. using damping Newton method
3. max. iteration number: 300
4. Initial values is set as the "current solution" in the "solver management dialog"
My question:
1. Can COMSOL solve such strong-coulped equations by means of extrusion variables?
2. How to get the validated initial guess value to make the computation to be convergence?
Thank you for your attention!
Guangji Ji
MPI/Magdeburg
Hello Guangji Ji
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