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October 15, 2015, 00:40 |
About the arc in blockMesh
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#1 |
Member
Zhifang Hu
Join Date: Sep 2015
Location: Brisbane
Posts: 54
Rep Power: 10 |
It may be a weird question, but that's what i am facing now.
I am using OpenFoam 2.4.0 to run a fluid simulation over a pipe in 2D and i build the geometry using blockMesh. I build a circular pipe by define a square first, then use arc to make it circular. The weird thing is that if i left the pipe to be square and run the simulation, everything goes fine. However, if i use the arc and make the pipe be circular, i faced the problem that dT is constant shrinking during the simulation (about half the size of previous iteration), which leads to a really small dT value, then the simulation breaks down. Anyone have any suggestions for me. Thanks |
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October 22, 2015, 03:40 |
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#2 |
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
Posts: 1,266
Blog Entries: 1
Rep Power: 24 |
before run the simulation, use "checkMesh" to investigate mesh quality
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My Personal Website (http://nimasamkhaniani.ir/) Telegram channel (https://t.me/cfd_foam) |
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