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Slip bc with compressibleInterFoam leads to velocity oscillation |
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March 10, 2009, 09:24 |
Dear fellow Foam-Users,
I'
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#1 |
New Member
Florian Gruber
Join Date: Mar 2009
Location: Stuttgart, Germany
Posts: 6
Rep Power: 17 |
Dear fellow Foam-Users,
I'm currently trying to run an injection mold simulation using a modified version of the compressibleInterFoam-solver, and keep running into stability problems. The case setup is very basic: phase 1 enters a specified cavity geometry and displaces phase 2 (air), which leaves the domain on the other side via ambient boundaries. The walls of the cavity are set up as noSlip (fixedValue) and slip-bcs. It's only a testcase, so the mesh is purely hex and generally good. After some time during the calculation, I experience strange velocity patterns normal to all slip boundary walls, which eventually blow up my solution. Does anyone else have similar problems using slip-bcs for a multiphase (vof) simulation? Any hint or help would be greatly appreciated! Best regards, Florian |
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March 10, 2009, 09:48 |
Second try with the image, had
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#2 |
New Member
Florian Gruber
Join Date: Mar 2009
Location: Stuttgart, Germany
Posts: 6
Rep Power: 17 |
Second try with the image, had a connection timeout...
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March 10, 2009, 10:11 |
Sorry for the triple post, see
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#3 |
New Member
Florian Gruber
Join Date: Mar 2009
Location: Stuttgart, Germany
Posts: 6
Rep Power: 17 |
Sorry for the triple post, seems to be a problem with the university gateway. The picture i wanted to show you can be found here:
http://img152.imageshack.us/img152/5688/oscillation.jpg Best regards, Florian |
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October 18, 2009, 23:58 |
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#4 | |
Member
Jitao Liu
Join Date: Mar 2009
Location: Jinan , China
Posts: 64
Rep Power: 17 |
Quote:
I am interested in the injection molding simulation too. How is it going on? Hoping that we can help each other. Best wishes, Jitao |
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