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how to apply boundary condition for Nozzle in Fluent?

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Old   July 2, 2016, 04:56
Default how to apply boundary condition for Nozzle in Fluent?
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Akshay Malik
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I am having problem in defining boundary condition for CD nozzle. Inlet pressure is given as 80 bar, inlet temp is given as 1583 K and inlet velocity is 186 m/s. Pressure at outlet is 13 bar.

However in fluent there are condition like supersonic gauge pressure inside pressure inlet condition. For which I have no clue.

While I am giving BC, the solution is diverging.

What condition should I prescribe? I have to use K- Epslion model, with 1% turbulent viscosity.
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cfd, fluent 14 to fluent 15.

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