# criterion for condensation??????

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 July 21, 2006, 01:08 criterion for condensation?????? #1 Asghari Guest   Posts: n/a Hi all; I am simulating the condensing water-vapor flow in a tube. Initially,fluid is single gas phase, but fluid is condensed,gradually . Is following criterion suitable and logical to distinguish liquid phase from gas phase? If T < Tsat , Fluid is in liquid phase zone.T > Tsat , Fluid is in gas phase zone. Reynolds number is about 100000. Best regards.

 July 21, 2006, 03:41 Re: criterion for condensation?????? #2 draussen Guest   Posts: n/a I think this sound suitable!!! And I think it has nothing to do with the Reynoldsnumber (exept from the heat transfer and the fow conditions which were responsable for the temperature value ;-) )

 July 21, 2006, 04:21 Re: criterion for condensation?????? #3 MKP Guest   Posts: n/a I think what u said is okay only if pressure is included while calculting the Tsat. Pressure plays major role in deciding the Tsat. [Ref. the chapter Pure Substances in any Basic Thermodynamics book ] If u have already taken care the pressure effect then the following is correct. If T < Tsat , Fluid is in liquid phase zone.T > Tsat , Fluid is in gas phase zone. All the best, MKP

 August 8, 2006, 04:47 Re: criterion for condensation?????? #4 brusly solomon Guest   Posts: n/a hi i am solving one heat pipe,nothing but a closed axialy rotating zone carying freon vapour.can u tell me wat are the solver settings necessary. advancethanks for regards

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