What causes the difference ?!!!

o_mars_2010 · September 26, 2020, 10:29

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.

cae · October 9, 2020, 18:14

the contact angle on the wall? In Comsol, you set 90degrees. But in fluent, like 150?

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October 9, 2020, 18:14		#2
cae New Member Zhifeng Join Date: Oct 2017 Location: Delaware Posts: 2 Rep Power: 0	the contact angle on the wall? In Comsol, you set 90degrees. But in fluent, like 150?