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[ANSYS Fluent] k-epsilon vs. k-omega

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Old   July 10, 2019, 07:40
Smile [ANSYS Fluent] k-epsilon vs. k-omega
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Georg
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Hello CFD Online Community,

I'm currently simulating a vertical submerged water jet impinging on a mobile sand bed. I'm using the VOF multiphase model but I'm not sure if I should choose k-epsilon or k-omega for my turbulence model. I have read that k-epsilon is not very well specified at the 'wall'. I also have a question about that: by 'wall' do they mean a boundary defined as 'wall' or can it be a boundary between the two phases (sand and water)?

Thanks in advance for your time and support.
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