|
[Sponsors] |
August 10, 2015, 05:39 |
how to find heat transfer coefficient
|
#1 |
Member
Shaheer
Join Date: Jul 2015
Posts: 37
Rep Power: 11 |
Hello I am simulating a combustion chamber and in it nitrogen flows over some heat carrier. I know the temperature of the air and temperature of the heat carrier. I need to find the heat transfer rate and cofficient from the simulation. Is it possible? The tutorials i have consulted on heat transfer always give the heat transfer values before simulation and then show the heat dispersion. I dont have the heat transfer coefficient i need it from the simulation.
|
|
August 10, 2015, 09:20 |
|
#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,756
Rep Power: 66 |
Yes. The heat transfer coefficient is one of the default solution values. But (by default) all heat transfer coefficients are computed from a single reference temperature.
|
|
August 10, 2015, 09:25 |
|
#3 |
Member
Shaheer
Join Date: Jul 2015
Posts: 37
Rep Power: 11 |
Thats music to my ears. So how do i obtain the value ? Mind you all i am feeding is the temperature of the gas and temperature of the heat carrier.
|
|
August 10, 2015, 13:26 |
|
#4 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,756
Rep Power: 66 |
Setup the problem, make sure you activate energy equation. Solve/iterate.
Then plot surface heat transfer coefficient (it's under the temperature category), export, do whatever you want. The reference temperature should also be specified in the reference values pane (the default is 288 K I think). |
|
August 11, 2015, 07:08 |
|
#5 |
Senior Member
Bruno Machado
Join Date: May 2014
Posts: 271
Rep Power: 13 |
Luckytran information is correct but the heat transfer coefficient is in the wall fluxes tab.
|
|
August 11, 2015, 08:17 |
|
#6 |
Member
Shaheer
Join Date: Jul 2015
Posts: 37
Rep Power: 11 |
I see thank you both for the information. I am in the middle of a simulation of the combustion chamber i will try to see if i can get the specific details i was aiming at, if not i might need a bit more guidance.
|
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
calculationg heat transfer coefficient in a packe bed | sarah l | FLUENT | 3 | June 18, 2015 15:17 |
To find out the heat transfer coefficient in a fresenel lens solar collector | santosh.jaina | FLUENT | 0 | February 13, 2015 02:27 |
Heat transfer coefficient | CIN3X | OpenFOAM Running, Solving & CFD | 3 | November 25, 2013 06:54 |
Heat Transfer Coefficient | AndBra | FLUENT | 2 | June 4, 2013 16:35 |
error message | cuteapathy | CFX | 14 | March 20, 2012 07:45 |