Heat flux

  • Heat Flux
  • Heat flux is the amount of heat that is transferred across a surface of unit area in a unit of time. Also refers to latent and sensible heat fluxes in the atmosphere and between the Earth's surface and atmosphere.
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 of area per unit of 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。フーリエの法則によれば、熱流束は熱の流れる方向の温度勾配に比例する。その比例係数を熱伝導率(記号ρ)という。

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

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