|
[Sponsors] |
August 6, 2009, 14:08 |
Why does negative heat flux come?
|
#1 |
New Member
Join Date: Mar 2009
Posts: 1
Rep Power: 0 |
Hi Guys
I am dealing with a conjugate heat transfer problem. The flow is basically "flow between two parallel plates" and those parallel plates have some thickness. I gave heat flux BC on one of the walls of these plates. But I get negative heat flux in the solid region when it is trying to solve. What could be the problem?? Thnx |
|
August 6, 2009, 16:08 |
|
#2 |
Senior Member
Pauli
Join Date: Mar 2009
Posts: 189
Rep Power: 17 |
Probably nothing is wrong (other than the user not understanding sign conventions).
Negative heat flux typically means the heat flux is in the direction opposite of the direction assumed to be positive when the equations were derived. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Sign of Heat Flux at wall | Kyung | FLUENT | 2 | February 26, 2016 16:25 |
Heat Flux Wall Boundary Confusion. | Joee | FLUENT | 1 | August 21, 2010 12:20 |
[blockMesh] BlockMesh FOAM warning | gaottino | OpenFOAM Meshing & Mesh Conversion | 7 | July 19, 2010 14:11 |
[blockMesh] Axisymmetrical mesh | Rasmus Gjesing (Gjesing) | OpenFOAM Meshing & Mesh Conversion | 10 | April 2, 2007 14:00 |
why the value of wall heat flux is negative? | prayskyer | CFX | 5 | September 29, 2006 07:32 |