A Generalized Enhanced Fourier Law

نویسندگان

  • Ashok T. Ramu
  • John E. Bowers
چکیده

A generalized enhanced Fourier law (EFL) that accounts for quasiballistic phonon transport effects in a formulation entirely in terms of physical observables is derived from the Boltzmann transport equation. It generalizes the previously reported EFL from a gray phonon population to an arbitrary quasi-ballistic phonon mode population, the chief advantage being its formulation in terms of observables like the heat flux and temperature, in a manner akin to the Fourier law albeit rigorous enough to describe quasi-ballistic phonon transport. [DOI: 10.1115/1.4034796]

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تاریخ انتشار 2017