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-   -   wall heat flux or boundary source of energy??? (http://www.cfd-online.com/Forums/cfx/23934-wall-heat-flux-boundary-source-energy.html)

Albi May 4, 2007 04:57

wall heat flux or boundary source of energy???
 
Hi,

i should impose an heat flux for a wall boundary conditions.

What is the differences between the choice of heat flux (under boundary details panel->heat transfer->heat flux) and the choice of a energy source (under source panel->source->Flux)?

Thank you.

opaque May 4, 2007 11:25

Re: wall heat flux or boundary source of energy???
 
Dear Albi,

A boundary source is just adding a fixed amount of energy to the equation at that boundary.

However, a heat flux specified condition satisfy heat flow continuity. That is,

Heat Flux = heat conduction + radiation transfer + other physics

Hope it helps,

Opaque..



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