Heat flux

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  • Heat Flux
definition
  • Flow of thermal energy through a gas or plasma; typically computed as third moment of a distribution function.
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Abstract from DBPedia
    Heat flux or thermal flux, sometimes also referred to as heat flux density, heat-flow density or heat flow rate intensity is a flow of energy per unit area per unit time. In SI its units are watts per square metre (W/m2). It has both a direction and a magnitude, and so it is a vector quantity. To define the heat flux at a certain point in space, one takes the limiting case where the size of the surface becomes infinitesimally small. Heat flux is often denoted , the subscript q specifying heat flux, as opposed to mass or momentum flux. Fourier's law is an important application of these concepts.

    熱流束（ねつりゅうそく、英: heat flux）とは、流束のひとつで、単位時間に単位面積を横切る熱量である。 単位には W/m2 が用いられる。

    (Source: http://dbpedia.org/resource/Heat_flux)