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Combustable Nozzle

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Old   April 16, 2017, 07:30
Default Combustable Nozzle
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sunil kumar
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Hello,

i am trying to simulate a combustable jet, but i cant get the pressure field to convergence. the minimum pressure seems to just keep reducing until the solution crashes. I have put up my pressure boundary conditions.
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Old   April 19, 2017, 01:28
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khedar
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You have specified Pressure to be constant at both inlet and Outlet..
Try to Check your mesh for non-orthogonality and skewness.
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Old   April 19, 2017, 05:21
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sunil kumar
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I Have tried to change the pressure boundary conditions but no luck, I was wondering for combustion in the thermogas file for the species model in nmoles do i specify 1 or the number of moles in the reaction? as I have specified 1 as was in the tutorials however i was unsure about why.
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Old   April 19, 2017, 05:22
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sunil kumar
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Quote:
Originally Posted by khedar View Post
You have specified Pressure to be constant at both inlet and Outlet..
Try to Check your mesh for non-orthogonality and skewness.
This is what I have for the species model as running
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