# Mapping of heat transfer coefficient.

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 October 13, 2021, 02:20 Mapping of heat transfer coefficient. #1 New Member   Arun Issac Join Date: Oct 2017 Location: Kerala, India Posts: 6 Rep Power: 7 Hey all, I am doing a heat transfer problem. I divided the problem into two simulations. The first one is an external flow over a heated body. From this simulation, I will get the heat transfer coefficients(HTC) and in the second simulation, I am planning to do a CHT simulation where I need to use the HTC that I got from the external flow simulation. Currently, I am assigning the area-averaged HTC from the external flow simulation to the CHT simulation. What I need is a one-to-one mapping of the HTC to CHT simulation since both are done in the same geometry. Thanks for the help.

 October 13, 2021, 03:35 #2 Senior Member   Alexander Join Date: Apr 2013 Posts: 2,256 Rep Power: 32 write to profile HTC from simulation and apply it as boundary condition __________________ best regards ****************************** press LIKE if this message was helpful

 October 13, 2021, 04:18 #3 Senior Member   Lorenzo Galieti Join Date: Mar 2018 Posts: 342 Rep Power: 11 agree with Alexander. However, i am confused on why you don't simulate the full problem in one run.

October 13, 2021, 14:18
#4
New Member

Arun Issac
Join Date: Oct 2017
Location: Kerala, India
Posts: 6
Rep Power: 7
Quote:
 Originally Posted by AlexanderZ write to profile HTC from simulation and apply it as boundary condition
Thank you, Will try it.

October 13, 2021, 14:23
#5
New Member

Arun Issac
Join Date: Oct 2017
Location: Kerala, India
Posts: 6
Rep Power: 7
Quote:
 Originally Posted by LoGaL agree with Alexander. However, i am confused on why you don't simulate the full problem in one run.
The reason why i simulate the problem separately is because of the mesh number of elements. What i am try to simulate is a heat transfer analysis of electrical motor which is cooled by external forced convection. So if i am simulating both external and internal fluids(there is air inside the motor), then my mesh count will be very high which makes the problem computationally limiting for me.

 Tags cht coupling, fluent, htc