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COMSOL 2D vs 3D
Posted Aug 30, 2022, 8:15 p.m. EDT 1 Reply
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I am simulating a microchannel and using the microfluidic module. I use the transport of diluted species to see the concetntration profile. I use both 2d and 3d simulations. When i do the 2d vs 3d i see the concentration profiles are virtually similar. In 2d you dont put the height of the channel, does comsol assumes any 2d model and does the simulation assuming its in 3d space and makes a 3d profile?
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Hello Bhuwan,
No. When you perform a 3D analysis in COMSOL, the software does in fact perform a full-fledged 3D analysis. It does not extrapolate from a 2D analysis.
What is going on in your 3D analysis is that its results happen not to depend much (if at all) on the perpendicular direction. This is the result of your model inputs, not of the software design.
Best,
Jeff
-------------------Jeff Hiller