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what is backflow total temperature

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Old   May 20, 2013, 22:51
Question what is backflow total temperature
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Molly
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when I was settin the pressure outlet, it required set the backflow total temperature. could anyone tell me what is that, and what s it use for, and how to set it?

BTW, I was modelling a water boiling in a pipe model. A mount of water flowing into a heating pipe and boiled to steam, then flow out. the problem I met whatever I change my setting the calculations were failure for the divergence. NEED HELP!!
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Old   June 4, 2013, 15:48
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Backflow temperature is the temperature of the fluid thats entering your outlet (reversed flow). To avoid this, you need to avoid reversed flow by extending your domain outlet

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Old   November 11, 2016, 05:29
Default Boiling in Co-axial pipes
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@sherry0fly i am doing the case similar to the case as yours. Boiling happens in inner pipe in a geometry of two co-axial pipes. Water in the annulus region remains water due to high pressure in the annulus region. Can you please tell me whether you have done this case or not ? I'm confused how to give the two operating pressures. (inner pipe has 2.2MPa and annulus region has 10MPa). How to specify these operating pressures in fluent ?
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