Coarse Edge

JulioAmodia · May 29, 2023, 06:20

Hi there,

This is Julio. I am new to OpenFoam and CFD. I have a very basic question but I am having a hard time trying to fix it.
I have a very basic space I want o analyzed the temperature and air speed variations within. I have inlet boundaries and some other interior features. The problem occurs when generating the main boundary of the space the shape is similar to a semicircle but I simplified it with straight lines. However, when I run the OpenFOAM meshing it generates a mesh with very coarse edges and this gives me very strange results.
I have marked in red how I think it should be to obtain more realistic results.
Does anybody know why is this happening? which parameters should I modify to obtain a straight mesh?

Thanks in advance.

JulioAmodia · June 1, 2023, 07:46

Hi there,

Could anybody give me a hint on this?

Thanks

JBeilke · June 1, 2023, 08:57

Maybe it helps, when you ask the question in the right subforum.
https://www.cfd-online.com/Forums/openfoam-meshing/

June 1, 2023, 08:57		#3
JBeilke Senior Member Joern Beilke Join Date: Mar 2009 Location: Dresden Posts: 539 Rep Power: 20	Maybe it helps, when you ask the question in the right subforum. https://www.cfd-online.com/Forums/openfoam-meshing/ JulioAmodia likes this.

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June 1, 2023, 07:46		#2
JulioAmodia New Member Join Date: May 2023 Posts: 4 Rep Power: 3	Hi there, Could anybody give me a hint on this? Thanks