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non constant outlet temperature

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Old   April 9, 2012, 20:12
Default non constant outlet temperature
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Hi, I'm new on fluent and I have some basic problems.
I have imported a 3D pipe and want to define a flow with constant temperature at the inlet and some constant heat gain at the walls, and find the temperature distribution and temperature at the outlet, now my problem is the outlet boundary condition. I want to define a constant pressure at the outlet but if i define pressure outlet BC, I should define constant outlet temperature, while i don't want to do it, and want to find, the out temperature according to heat gain along the pipe. so which outlet boundry condition i should choose??
thanks
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heat transfer, non constant temperature, outlet boundary condition, pipe

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