postprocessing problem of heat exchanger model

xuzy0223 · December 8, 2011, 06:56

Hi all，

i am a new to the fluent. now，when i finished the case using heat exchanger model，i just get the temperature contour of primary fluid（air），but i don't know how to obtain the result of auxiliary fluid（water）.FLUENT help tutorial don't mentioned this detail.
so my question is whether the temperature contour of auxiliary fluid in heat exchanger model can be displayed in fluent postprocessing? if it can be extracted,how do it?

xuzy

delaneyluke · December 9, 2011, 06:58

Hi,
The heat exchanger model in Fluent is not a multiphase model.
What i mean to say is that you are still solving the primary fluid (continuity, momentum and energy) and then adding the auxillary fluid through the heat exchanger model which calculates the exit temp of aux fluid using 1-D heat transfer convection.
So to answer your question, you will not get a temp contour of your aux fluid.
The only information for the aux fluid is available under "Reports>Heat exchanger model"

Regards
Luke

December 8, 2011, 06:56	postprocessing problem of heat exchanger model	#1
xuzy0223 New Member xuzhenyuan Join Date: Dec 2011 Posts: 2 Rep Power: 0	Hi all， i am a new to the fluent. now，when i finished the case using heat exchanger model，i just get the temperature contour of primary fluid（air），but i don't know how to obtain the result of auxiliary fluid（water）.FLUENT help tutorial don't mentioned this detail. so my question is whether the temperature contour of auxiliary fluid in heat exchanger model can be displayed in fluent postprocessing? if it can be extracted,how do it? xuzy

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December 9, 2011, 06:58		#2
delaneyluke Senior Member Join Date: Mar 2009 Location: Indiana, US Posts: 186 Rep Power: 17	Hi, The heat exchanger model in Fluent is not a multiphase model. What i mean to say is that you are still solving the primary fluid (continuity, momentum and energy) and then adding the auxillary fluid through the heat exchanger model which calculates the exit temp of aux fluid using 1-D heat transfer convection. So to answer your question, you will not get a temp contour of your aux fluid. The only information for the aux fluid is available under "Reports>Heat exchanger model" Regards Luke