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What causes the difference ?!!!

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Old   September 26, 2020, 10:29
Default What causes the difference ?!!!
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Osman
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I have a simulation of the toilet flushing process.
The simulation have been done on both ANSYS Fluent & COMSOL Multiphysics.


I captured a snapshot of the simulation at the same time from both programs.
On ANSYS the water is flowing down in layers, while in COMSOL the fluid exit like a Jet.


Could you please help me to find what is causing such a difference.
Fluent simulation is based on VOF, while COMSOL is based on Level of Set.


Both simulation are turbulent with realizable k-e model.
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File Type: jpg Ansys.jpg (35.8 KB, 11 views)
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Old   October 9, 2020, 18:14
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cae
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Zhifeng
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the contact angle on the wall? In Comsol, you set 90degrees. But in fluent, like 150?
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