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Dirichlet boundary condition
Posted Mar 16, 2015, 3:14 a.m. EDT 2 Replies
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Dear friends，
Does anybody know how to set Dirichlet boundary condition in the Comsol Multipphysics 4.2a ?
Does anybody know how to set Dirichlet boundary condition in the Comsol Multipphysics 4.2a ?
2 Replies Last Post Mar 17, 2015, 9:06 p.m. EDT
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Posted:
10 years ago
Which physics are you using?
As you know, Dirichlet BC means the value of the function on the boundary. If it is electrostatics, the value of the potential, in mass transport concentration etc.
br
Lasse
As you know, Dirichlet BC means the value of the function on the boundary. If it is electrostatics, the value of the potential, in mass transport concentration etc.
br
Lasse
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Posted:
10 years ago
Dear Lasse Murtomäki,
Thank you so much! I want to simulate the evaporation of sessile droplet. To keep the triple phase contact line fixed during the evaporation.
Yesterday, I adopt the no_slip condition at the liquid-solid interface. But the contact line changes from 1415um to 1322.5um. So I want adopt the Dirichlet boundary condition to control the contact line pinned.
Thank you so much! I want to simulate the evaporation of sessile droplet. To keep the triple phase contact line fixed during the evaporation.
Yesterday, I adopt the no_slip condition at the liquid-solid interface. But the contact line changes from 1415um to 1322.5um. So I want adopt the Dirichlet boundary condition to control the contact line pinned.