Dissimilar flows can be compared by exploiting the fact that all flux densities divided by their conjugate volume densities form velocity fields, which have been described as generalized winds. These winds are an extension of the classical notion of wind in fluids which puts these distinct processes on a common footing, leading to thermodynamical implications. This paper extends this notion from fluids to radiative transfer in the context of a classical two-stream atmosphere, leading to such velocities for radiative energy and entropy. These are shown in this paper to exhibit properties for radiation previously only thought of in terms of fluids, such as the matching of velocity fields where entropy production stops.

中文翻译：

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辐射传输和广义风

可以通过利用以下事实来比较不同的流动：所有通量密度除以它们的共轭体积密度形成速度场，这已被描述为广义风。这些风是流体中风的经典概念的延伸，它将这些不同的过程置于共同的基础上，从而产生热力学影响。本文将这一概念从流体扩展到经典双流大气环境中的辐射传输，从而导致辐射能和熵的速度如此之快。这些在本文中显示为表现出以前仅从流体方面考虑的辐射特性，例如熵产生停止时的速度场匹配。