Lagrange multiplier in axial symmetry
Posted Jan 11, 2017, 12:46 PM EST Heat Transfer & Phase Change, Geometry, Mesh Version 5.2 2 Replies
i am modelling a moving boundary interface (Stefan Problem), using the Lagrange multiplier T_lm from heat transfer analysis for prescribed normal mesh velocity in the deformed geometry physics.
The model is almost identical to the 2D Tin melting front example from Comsol library:
except that I work in axial symmetry and my interface is perpendicular to the axis of symmetry.
When I solve, the Lagrange multiplier T_lm is always zero at r=0. I guess I am missing something fundamental here ? Does anyone have a hint for me ?
Thank you and Regards
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.