Abstract
Distinct non-Fourier behavior in terms of finite propagation velocity and a hyperbolic wave like character of heat conduction has been reported for certain materials in several studies published recently. However, there is some doubt concerning these findings. The objective of this paper is to present experimental evidence for a perfectly Fourier-like behavior of heat conduction in those materials with nonhomogeneous inner structure that have been under investigation in the other studies. This controversy needs to be settled in order to understand the physics of heat conduction in these materials.
Kurzfassung
In mehreren kürzlich veröffentlichten Arbeiten wird für verschiedene Materialien von einem eindeutig nicht-Fourierschen Wärmeleitungsverhalten im Sinne einer endlichen Wärmeleitungsgeschwindigkeit berichtet. An diesen Ergebnissen bestehen jedoch erhebliche Zweifel. Das Ziel der vorliegenden Studie ist es, für diese Materialien ein eindeutig Fouriersches Wärmeleitungsverhalten in entsprechenden Experimenten nachzuweisen. Die Ergebnisse sollen zur Klärung der offenen Fragen beitragen.
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Received on 19 November 1999
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Herwig, H., Beckert, K. Experimental evidence about the controversy concerning Fourier or non-Fourier heat conduction in materials with a nonhomogeneous inner structure. Heat and Mass Transfer 36, 387–392 (2000). https://doi.org/10.1007/s002310000081
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DOI: https://doi.org/10.1007/s002310000081