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Error in the rotor-diffuser interface when grid is refined |
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August 5, 2019, 07:09 |
Error in the rotor-diffuser interface when grid is refined
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#1 |
New Member
Overijssel
Join Date: Apr 2019
Posts: 11
Rep Power: 7 |
Hello everyone,
I have been encountering a problem. When I am doing simulation of a pump with a coarse mesh (cell size: 0.05 m) the simulation runs fine. There is an error warning that " Hard points are not supported and might be ignored in the 3D pre inflation " . I disregard this warning and it runs fine. When I decrease the cell size to to 0.035 m, it gives me the same error warning plus error at the interface when i try to run the simulation. I had a similar error in the solver before but I reduced the impeller-volute domain interface tolerance to 1 mm and it worked fine. Now that I want to have a grid independent study, the solver does not let me. The error is included in the attachment. |
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August 19, 2019, 16:13 |
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#2 |
Senior Member
M
Join Date: Dec 2017
Posts: 703
Rep Power: 13 |
Can you add an image of said interface?
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August 19, 2019, 18:08 |
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#3 |
Senior Member
Oskar
Join Date: Nov 2015
Location: Poland
Posts: 184
Rep Power: 11 |
Hello.
Have You tried suggestion from error message? Maybe You should try to use GGI with "no intersection allowed" or/and use bitmap instead of direct approach. Best regards, Oskar |
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August 19, 2019, 19:34 |
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#4 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,872
Rep Power: 144 |
You should load the def file into CFD-Post and have a close look at the interface. There is probably something wrong with the interface elements, so have a look to find out what.
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Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum. |
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