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Layered shell and surface integration

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I am trying to simulate the heating of a freestanding membrane by a laser beam, including surface radiation (black body) I modelled the membrane with layered shell with 2 layers (two materials) and added the "heat transfer in shells" physics with a time dependent simulation I am getting the correct membrane heating and I can see the temperature profile across the membrane

Now I would like to make a surface integration (in derived values) to have the total dissipated power via surface radiation and the total beam deposited power In particular I would like to integrate these two quantities over the whole membrane surface: htlsh.rflux - Radiative heat flux htlsh.dbpi1.Qb - Deposited beam power density

In a 3D geometry this would work easily, but with layered shells I cant find a way to make it work, always get an error "undefined variable" on "bounday 1"

any ideas?

thank you


0 Replies Last Post 16.03.2021, 13:11 GMT-4
COMSOL Moderator

Hello Mario Rossi

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