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Interfaces Discontinuity

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Old   September 30, 2017, 19:26
Default Interfaces Discontinuity
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Emanuel Camacho
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Hi. I'm trying to solve a flapping wing using FLUENT but there's a problem I'm trying to solve for a week! I am using an interface to guarantee that there will not be a reduction in the mesh quality but the interface shows discontinuities in the velocity and pressure fields, as shown in the attached file. I personally think this happens due to mass flow conservation, but is there any way to fix this?

Thanks in advance,

Emanuel
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Old   October 3, 2017, 15:44
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Emanuel Camacho
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Found a solution. Seems that the root's problem was the Transient Formulation. A second order implicit method was making the result unstable. I'm using now the first order implicit with a reduced time step.
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