Learning Forum

[abd fs]

dear experts,

I simulate a turbulent flow with the transient Realizable k-epsilon model with a compressible fluid I have:

Ideal gas, pressure inlet =0.25 MPa, Pressure outlet, and wall.

You will find attached two photos

I get this message

how can i fix this type of error?

I would be very grateful to you for helping me

Best regard,

SER

[Rob]

It depends on what's causing the problem. You've got a very low pressure somewhere in the domain, that'll cause problems with the energy equation too and the cell density will be near enough zero. If the solution is not converged, can you run it on. 

What's the mesh like in the problem region, and have you resolved any flow features in that area?

[abd fs]

Dear rwoolhou,

Thank you for your prompt response.

How do you know which cells are causing the problem?

I tried to use the adaptation of the pressure gradient and I can't find it. Is this property not included in the academic version?

I use the academic version ANSYS 19.3

Best regards

SER

 

[Amine Ben Hadj Ali]

Cell register with field value and show cells with value less than few Pascals

[Susan]

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Dear, have you solved the problem? How? Thank you.

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