On the validity of Fouriers law in systems with spatially varying strain rates

Evans, Denis; Jepps, Owen

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On the validity of Fouriers law in systems with spatially varying strain rates

Date

1999

Authors

Evans, Denis

Jepps, Owen

Publisher

Taylor & Francis Group

Abstract

Non-equilibrium molecular dynamics (NEMD) simulations are used to study the generation of heat fluxes in systems with spatially varying shear rates. We show that the kinetic temperature, when used in Fourier's law of heat conduction, does not correctly account for the heat flux, and that the normal temperature as described by Rugh (1997, Phys. Rev. Lett., 78, 772), should be used. Only in the absence of normal temperature gradients can heat fluxes due to strain rate coupling be correctly calculated.

URI

http://hdl.handle.net/1885/93736

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Open Access Research

Source

Molecular Physics

Type

Journal article

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On the validity of Fouriers law in systems with spatially varying strain rates

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