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-   -   Heat Flux (http://www.cfd-online.com/Forums/openfoam/118594-heat-flux.html)

Grimoli May 30, 2013 11:21

Heat Flux
 
What should I do to impose a heat flux on a heat transfer case on OpenFoam??
Should I put it on the wall ''changeDictionaryDict" configurations??I tried to search it on OpenFoam tutorial but I had no sucess at all.Can someone help me please??
I'm doing a case where i have a wall being heated and i need to make a flux between that wall and a air(which surround the wall).Please help me

morard May 31, 2013 03:18

There is a wallHeatFlux boundary condition, http://openfoamwiki.net/index.php/Contrib_wallHeatFlux

or, you can use fixedGradient,

wall
{
type fixedGradient;
gradient uniform 1000;
}

Grimoli June 3, 2013 20:56

is there a way for using the wallheat flux for a chtmulti solver?

morard June 4, 2013 07:29

I've never used that solver, but it should be possible, I think...

Grimoli June 4, 2013 07:40

is there a way to change the buoyant solver to a cht multi region one??
that would be simpler for me instead of trying to do a flux between these 2 regions

Grimoli June 4, 2013 07:42

minZ
{
type compressible::turbulentHeatFluxTemperature;
heatSource flux;
q uniform 7.53;
value uniform 300;
}
}

i saw topics of people saying that i would have to use this,but when i tried to put this on the dictionary dict,the program doesnt run at all,it gives more erros than everything.What probably I'm doing wrong??


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