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October 15, 2013, 08:50
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difficulties with fluent simulation
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#1 |
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New Member
MEgne
Join Date: Sep 2013
Posts: 2
Rep Power: 0  |
I'm working on simulation of flow behind ahmed body. I began my computation, but there is always the message "reversed flow on pressure outlet". I added dimension on pressur outlet but the problem still remain. I don't know if my boundary conditions (velocity inlet: 40m/s; turbulent intensity 10%; turbulence lenght scale 0.001 m; pressure outlet: gauge pressure 0 Pa; backflow turbulent intensity 10%; backflowturbulence lenght scale 0.001 m and operating conditions (gauge pressure 101325 Pa; gravity unchecked) are bad or my inializing conditions (i compute from all zone with gauge pressure equal to 0). Th turbulence model is k-epsilon realizable.
Please i need your help!!! |
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October 15, 2013, 08:56
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#2 |
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New Member
MEgne
Join Date: Sep 2013
Posts: 2
Rep Power: 0 |
A quick reply will be welcome
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October 15, 2013, 09:34
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#3 |
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Senior Member
Philipp
Join Date: Jun 2011
Location: Germany
Posts: 1,297
Rep Power: 27 |
This means, you have a flow at the pressure outlet into the domain. Normally, this happens when the outlet is too close to some relevant inside your domain. If you move the outlet further downstream, the error will vanish.
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