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Kremer的非平衡辐射熵公式存在的问题

Questioning on Kremer's Formula of Entropy of Nonequilibrium Radiation
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摘要 用KremerGM等提出的普适的非平衡辐射熵的热力学公式,算出在参量β的各种不同的取值下的辐射熵值,并把计算的结果同用各向异性平衡辐射熵公式在同样的β值下算得的结果相比较,发现:在β的很大的取值范围内两种结果基本上是一致的,因此用Kremer公式算出的不是真正的非平衡辐射熵,而是各向异性的平衡辐射熵或在真空中无熵产生的辐射熵。最后分析了kremer理论导致这种问题的原因。 The results calculated from the 'universal' formula of thermodynamic theory of entropy of nonequlibruium radiation presented by G. M. Kremer et al with various values of the parametter are compared to the results calculated from the formula of entropy of anisotopy equlibrum radiation with the same value of β. The resluts of the former and the later are equal with a few exceptions in large range of β. It is shown that the results caculated from kremer's formula are not really the entropy density of nonequilibrium radiation, but the entropy of anisotropy equilibrium radiation or radiation in vacuum. Finally, the reason to make kremer's theory are also analyzed in detail.
出处 《西北建筑工程学院学报(自然科学版)》 CAS 1996年第3期168-171,共4页 Journal of Northwestern Institute of Architectural Engineering
关键词 非平衡辐射 各向异性辐射 辐射熵 nonequilibrium radiation ,anisotropy radiation ,entropy of radiation
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参考文献1

  • 1汪志诚.热力学·统计物理[M]高等教育出版社,1993.

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