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Deviation from the Fourier law in room-temperature heat pulse experiments
-
Soma Both
and
József Verhás
Published/Copyright:
December 15, 2015
Abstract
We report heat pulse experiments at room temperature that cannot be described by Fourier's law. The experimental data are modeled properly by the Guyer–Krumhansl equation, in its over-diffusion regime. The phenomenon may be due to conduction channels with differing conductivities and parallel to the direction of the heat flux.
Funding source: Hungarian Scientific Research Fund
Award Identifier / Grant number: K104260, K116197, K116375
Received: 2015-6-18
Revised: 2015-11-1
Accepted: 2015-11-6
Published Online: 2015-12-15
Published in Print: 2016-1-1
© 2016 by De Gruyter
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Keywords for this article
Flash method;
Guyer–Krumhansl equation;
heat pulse experiment;
over-diffusive regime
Articles in the same Issue
- Frontmatter
- Editorial
- Deriving properties of low-volatile substances from isothermal evaporation curves
- Rate constants, timescales, and free energy barriers
- An analytical study of the endoreversible Curzon–Ahlborn cycle for a non-linear heat transfer law
- Experimental evidence concerning the different behavior of energy and exergy performance indicators of refrigeration systems in transient regimes
- Deviation from the Fourier law in room-temperature heat pulse experiments
- Phase field approaches of bone remodeling based on TIP
