Convection Patch Conditions
 

Howdy all,

My proceeding question most likely has a simple answer, yet one that has alluded me for over a day:

I created a 2D mesh of a small aluminum heat sink in the center of a large box of air. The heat sink has a heat source associated with it. I am using the chtMultiRegionSimpleFoam solver to determine the final temperature of the heat sink.

What should the boundary conditions on the four outside edges of the box of air be? Here is my best guess:

U:
type inletOutlet;
inletValue uniform ( 0 0 0 );
value uniform ( 0 0 0 );

T:
type inletOutlet;
inletValue uniform 300;
value uniform 300;

p:
type calculated;
value uniform 1e5;

p_rgh:
type fixedValue;
value uniform 1e5;

best regards,
Matt