simulation cylindrical capacitor with elmer

Numerical methods and mathematical models of Elmer
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Otto19
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simulation cylindrical capacitor with elmer

Post by Otto19 »

Hi all,

I need some support from experienced friends, I am trying to simulate the capacitance of two cylindrical bodies, the cylinder1 with smaller radius then cylinder2. During the simulation the cylinder1 shall be moved towards to cylinder2. My question is how can I move the cylinder1 and update the mesh? Is it possible to move the whole body and update the mesh after that?

-Otto
raback
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Re: simulation cylindrical capacitor with elmer

Post by raback »

Hi Otto,

Yes, there are ways to move the mesh. You would probably want to "scan" over the position resulting a pseudotime 1, 2, 3, .. and use this either with MeshSolve or RigidMeshMapper to move the mesh. The latter can utilize solution of Laplace equation as transient function between different bounaries and hence that would probably be more econimical here. It is sort of waste of resources to solve a linear elasticity (MeshSolve) equation to vary the geometry for a simple potential equation.

See test case "RigidMeshMapper2" on the use of the mesh mapping.

-P
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