surface conductance, copper wire, high pressure, heat flow, copper, petroleum ether
The three-dimensional flow of heat in a wire carrying a current and immersed in a liquid is solved in detail. Using this exact result the surface conductance of copper in petroleum ether has been measured as a function of pressure to 40 kbars. The measured surface conductance for copper in a fluid is very small, justifying approximations which yield results that are in agreement with a simplified one-dimensional heat-flow problem. Surprisingly, even at 40 kbars pressure a very large fraction of the joule heating within a wire with a length-to-diameter ratio of ~100 is dissipated through the ends of the wire rather than to the surrounding liquid
Original Publication Citation
D. L. Decker. "Surface conductance of a copper wire in a fluid at high pressure," Journal of Applied Physics 62(1): 51-54, July 1987.
BYU ScholarsArchive Citation
Decker, Daniel L., "Surface conductance of a copper wire in a fluid at high pressure" (1987). Faculty Publications. 745.
Physical and Mathematical Sciences
Physics and Astronomy
© 1987 American Institue of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics and may be found at http://link.aip.org/link/?JAPIAU/62/51/1
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