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Moving Boundary in a confined geometry, 2D axisymmetric

Posted 7 ott 2016, 05:10 GMT-4 Mesh Version 5.2 0 Replies

David Perry
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Hello, I am just starting to use the moving mesh/deformed geometry physics with Comsol and was just struggling a bit with a problem which I feel should be simple. I have a bezier polygon which takes the shape (in 2D axisymmetric) of being a series of truncated cones on top of each other, which gets narrower towards the bottom. I want to have a boundary within the polygon, which can move downwards, restricted by the border of the polygon, so that below the boundary there will be liquid and the transport of diluted species will be active and above will just be a solid boundary. I can get the boundary to move down but it is not restricted by the walls of the polygon. Any help would be much appreciated as I am still not familiar enough with the moving boundary functionality of COMSOL. I have attached a rough model so far.

Best wishes

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0 Replies Last Post 7 ott 2016, 05:10 GMT-4
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Hello David Perry

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