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why dose velocity(u,v) exist in solid part?

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Hi, I'm trying to simulate ice melting.
I used Heat Transfer in Fluid + Single Phase Flow module.
It's transient model and I want to see the flow(velocity vector) of the melted part(water).
I almost succeed but as you can see from the picture I attached, velocity exists in solid(blue region) part as well. I'd like to express velocity only in water part(red region).
Please help me out.


0 Replies Last Post 7 feb 2016, 06:21 GMT-5
COMSOL Moderator

Hello Ted Kim

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