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Meshing high aspect ratio objects
Posted Dec 7, 2016, 4:44 p.m. EST Heat Transfer & Phase Change, Geometry, Mesh Version 4.4 1 Reply
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Hi All,
I am trying to model a single unit of a counter-flow heat exchanger. The channels are half circles with diameter of 1 cm. If the length is short (<10 cm) comsol does fine. If the length increases then things start looking weird and comsol has errors in building the mesh. Any ideas on what might be going on and how I might address it?
The attached pic shows a 5 cm long channel on the left and a 20 cm long channel on the right.
Thank you,
Bryan
I am trying to model a single unit of a counter-flow heat exchanger. The channels are half circles with diameter of 1 cm. If the length is short (<10 cm) comsol does fine. If the length increases then things start looking weird and comsol has errors in building the mesh. Any ideas on what might be going on and how I might address it?
The attached pic shows a 5 cm long channel on the left and a 20 cm long channel on the right.
Thank you,
Bryan
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1 Reply Last Post Dec 8, 2016, 8:13 a.m. EST
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Posted:
7 years ago
Hello Bryan,
High aspect ratio geometries like yours are prime candidates for swept meshing.
See Reference Manual for COMSOL Multiphysics, version 5.2a, Chapter 8.
Best,
Jeff
High aspect ratio geometries like yours are prime candidates for swept meshing.
See Reference Manual for COMSOL Multiphysics, version 5.2a, Chapter 8.
Best,
Jeff