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exhaust jet to free space

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Old   November 25, 2009, 03:05
Question exhaust jet to free space
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Parham Omidian
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hi.
i want to simulate a exhaust fire jet to surrounding.
and i have some questions:
1. what boundary conditions is suitable for outlet boundary, pressure oulet or pressure far field? (i use pressure oulet)
2. when i simulate a turbulent jet without combustion my answer is correct and flow enter to my domain but when i enable model of non-premixed my result would be incorrect because part of flow is going out of lateral boundary while i expect to enter more flow to my domain because suction at combustion state is more than turbulent state without combustion?
please help me.
with best regards.
Parham
[IMG]file:///D:/Parham%20Omidian/turbulent%20jet.JPG[/IMG]
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Old   April 23, 2010, 18:58
Talking that's it
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Parham Omidian
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i solved it thanks
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Old   October 7, 2013, 21:11
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tien
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Dear Parham,
I am having trouble with the model of free jet into stagnant air. May you give me advice on the geometry I need to modify? the nozzle outlet is 50microns diameter. thank you in advance
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