What is it about?
The non-Fourier effects such as heat waves arise due to the multiple time and space scales nature of out-of-equilibrium heat transport, which includes ballistic wave and wave-like propagation due to coupling between different modes.
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Why is it important?
It is important in analyzing and interpretation the heat pulse experiments to understand the physical mechanism of wave-like heat propagation.
Perspectives
I hope that this article will help to interpret the experimental results on ultrafast wave-like heat transport. I also hope that my ideas will be proved by other authors, for example, using numerical calculations or molecular dynamics.
Sergey Sobolev
Institute of Problems of Chemical Physics
Read the Original
This page is a summary of: Heat Transport on Ultrashort Time and Space Scales in Nanosized Systems: Diffusive or Wave-like?, Materials, June 2022, MDPI AG,
DOI: 10.3390/ma15124287.
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