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Extrusion as a domain
Posted Oct 6, 2012, 11:10 a.m. EDT Version 4.2a 1 Reply
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Hi,
Imagine I have a substrate in which a geometrical shape has been machined into it (extruded in CAD). I want to model the fluid flow within the shape.
How can I access the shape as a "domain" within COMSOL? Consider the example in the screenshot ( I have removed a top cover for clarity). I want to assign the cut-out as my laminar flow domain and the rest of the substrate as another domain of a different material and physics. At the moment COMSOL associates everything as a single domain, so I have to model all parts as a fluid.
I have been successful in the past where I have had a shape "floating" within another shape i.e. the shape not cut-out but a shape within the larger block, then COMSOL has seen these as two separate domains.
The reason why I have not done this here is because the block has been provided to me with a cut-out and I do not want to change/redraw it.
Any Thoughts?
Many Thanks.
Tom
Imagine I have a substrate in which a geometrical shape has been machined into it (extruded in CAD). I want to model the fluid flow within the shape.
How can I access the shape as a "domain" within COMSOL? Consider the example in the screenshot ( I have removed a top cover for clarity). I want to assign the cut-out as my laminar flow domain and the rest of the substrate as another domain of a different material and physics. At the moment COMSOL associates everything as a single domain, so I have to model all parts as a fluid.
I have been successful in the past where I have had a shape "floating" within another shape i.e. the shape not cut-out but a shape within the larger block, then COMSOL has seen these as two separate domains.
The reason why I have not done this here is because the block has been provided to me with a cut-out and I do not want to change/redraw it.
Any Thoughts?
Many Thanks.
Tom
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1 Reply Last Post Oct 6, 2012, 4:48 p.m. EDT
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Posted:
1 decade ago
Hi
load in your hollow geoemtry, as is, then try the cover the top area with the COMSOL Geometry "Cap Faces" and selet the boundary edges
--
Good luck
Ivar
load in your hollow geoemtry, as is, then try the cover the top area with the COMSOL Geometry "Cap Faces" and selet the boundary edges
--
Good luck
Ivar