dissipation due to heat conduction

What is the dissipation due to heat conduction? D = -k . grad T . q / T where q is the heat flux, k is the coefficient of heat conduction
What is the physical meaning of this?
Balzs Pere
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On Nov 14, 4:50am, snipped-for-privacy@gmail.com wrote:

Also posted to sci.chem. Do not drop individual posts to a series of different groups. You can cross-post to multiple groups. That way, once a good response is obtained you don't need further responses, and if you get a stinker you can get "quality control" from a wider audience.
David A. Smith
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