wall heat transfer

kikko · January 24, 2012, 05:58

Good Morning at all,
I want to know if in OpenFoam is it possible to set a wall heat transfer boundery condition.
My case is listed below:
_ U=500 W/(m2 °k)
_ Text=577°K
I want that OpenFOAM solve:
k (dt/dx) =U (text-T)
Have OpenFoam a boundery condition to do that????
Thanks all for attention

romant · January 26, 2012, 03:28

Quote:

Originally Posted by kikko

Good Morning at all,
I want to know if in OpenFoam is it possible to set a wall heat transfer boundery condition.
My case is listed below:
_ U=500 W/(m2 °k)
_ Text=577°K
I want that OpenFOAM solve:
k (dt/dx) =U (text-T)
Have OpenFoam a boundery condition to do that????
Thanks all for attention

you can use either the turbulentHeatFlux boundary condition or just a fixedGradient boundary condition where you set your temperature gradient based on

Code:

dT/dx = U/k * (text-T)

more complicated boundary conditions can be set with groovyBC, where you then can also set temperature gradients based on different values from within you domain or something like that.

kikko · January 30, 2012, 05:08

I have just set the fixed gradient condition,
thank you very much

January 24, 2012, 05:58	wall heat transfer	#1
kikko New Member enrico bighè Join Date: Apr 2011 Location: italy Posts: 5 Rep Power: 15	Good Morning at all, I want to know if in OpenFoam is it possible to set a wall heat transfer boundery condition. My case is listed below: _ U=500 W/(m2 °k) _ Text=577°K I want that OpenFOAM solve: k (dt/dx) =U (text-T) Have OpenFoam a boundery condition to do that???? Thanks all for attention

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January 30, 2012, 05:08		#3
kikko New Member enrico bighè Join Date: Apr 2011 Location: italy Posts: 5 Rep Power: 15	I have just set the fixed gradient condition, thank you very much