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-   -   Thermocouple correction (https://www.cfd-online.com/Forums/openfoam-solving/185483-thermocouple-correction.html)

FlyingCat March 27, 2017 03:58

Thermocouple correction
 
Hi,

I saw that there is an option for thermocouple correction in OpenFOAMv16+:

http://www.openfoam.com/version-v161...g-thermocouple

I am not sure it is correct for the radiation. According to the code, the balance equation for radiation is emissivity*(G-sigma*T⁴).

I do not think it is correct because G is not Qin. For a boundary condition at a wall, we use Marshak boundary conditions:

https://www.sharcnet.ca/Software/Flu...ug/img5505.gif

I would think that we have to use it instead of the simple form that is used in openfoam v16+.

I have not got the same result when I change it. Which one is correct ?

Thanks for your response.

dennis722 September 14, 2020 08:14

do you used the function object thermocouple?


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