Heat flow

Fourier's law of conduction

${\mathbf {Q} }=-k(T)\nabla T$

where ${\mathbf {Q} }$ is the heat current, $T$ is the temperature, and Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle k(T)} is the thermal conductivity tensor of the material.

References

Related reading

• Luciano C. Lapas, Rogelma M. S. Ferreira, J. Miguel Rubí, and Fernando A. Oliveira "Anomalous law of cooling", Journal of Chemical Physics 142 104106 (2015)