|
[Sponsors] |
Conjugate heat transfer with radiation heat loss from solid surface |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
April 9, 2020, 13:03 |
Conjugate heat transfer with radiation heat loss from solid surface
|
#1 |
New Member
Faizan
Join Date: Apr 2020
Location: Netherlands
Posts: 6
Rep Power: 6 |
Dear all,
I am trying to model a combustion problem with conjugate heat transfer between solid and fluid along with radiation from the solid surface. Model consists of a simple slot burner on which flame stabilizes due to heat loss and flow non-uniformities. Without radiation, the model is working fine. But when I try to include radiation heat loss from solid surface, apparently there is no option to do so directly even with Define Profile and Wall Heat Flux macros. Can somebody guide me if I am missing something or do I have to model custom CHT boundary conditions in Fluent that include radiation using UDF. If so, does anyone have experience with it as it would require doing sort of inner iterations per global iteration for finding the right boundary profiles to be prescribed on interfaces between solid and fluid. Thank you for your help. |
|
April 9, 2020, 13:11 |
Radiation
|
#2 |
Senior Member
|
Do you want to include radiation loss to the atmosphere, i.e., via the external boundary or do you want radiation loss to the combustion products, i.e., from the coupled wall to the gas?
__________________
Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority. |
|
April 9, 2020, 13:23 |
Radiation heat loss to the atmoshphere
|
#3 |
New Member
Faizan
Join Date: Apr 2020
Location: Netherlands
Posts: 6
Rep Power: 6 |
Hi Vinerm,
I want to model heat loss via radiation to the atmosphere. Any idea? |
|
April 9, 2020, 13:46 |
Boundary Condition
|
#4 |
Senior Member
|
That is done via boundary condition. There is a mixed boundary condition that you need to use. This allows you to apply external convection as well as radiation heat loss. Other option is to choose only radiation.
__________________
Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority. |
|
Tags |
combustion, conjugate heat transfer, radiation, udf |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
No conjugate heat transfer between solid (cast iron) and fluid (water) part | Rajaero | FLUENT | 5 | June 25, 2023 03:07 |
Thermal non-equilibrium porous media model with conjugate heat transfer | Hexahedron | FLUENT | 9 | February 22, 2023 02:55 |
Radiation in semi-transparent media with surface-to-surface model? | mpeppels | CFX | 11 | August 22, 2019 07:30 |
Conjugate heat transfer + radiation + multi-species | tubois | OpenFOAM | 11 | January 14, 2018 11:57 |
radiation heat transfer | GeHa | FLUENT | 1 | September 5, 2012 14:56 |