| 自引力坍缩过程中的熵变 |
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| 引用本文： | 李元杰.自引力坍缩过程中的熵变[J].华中科技大学学报(自然科学版),1991(4). |
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| 作者姓名： | 李元杰 |
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| 作者单位： | 华中理工大学物理系 |
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| 摘 要： | 本文研究了三种具体的动态坍缩模型,并计算其坍缩过程中的熵变,结果表明:在局部能量守恒、局部熵流守恒成立条件下,孤立系统的坍缩过程是一个等熵过程,对于有辐射热流的开放系统,其坍缩过程是一个熵减小的过程.
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| 关 键 词： | 自引力 熵 坍缩系统 |
Entropy Variation during Collapse by Self-Gravitation |
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| Li Yuanjie.Entropy Variation during Collapse by Self-Gravitation[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1991(4). |
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| Authors: | Li Yuanjie |
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| Abstract: | Three specific models for nonstationary collapse have been investigated and the entropy variation during collapse has been calculated. The results of calculation show that the collapsing process is art entropic one if both local energy and local flux of entropy are conservational. However, for an open system with radiation heat flux, the collapsing process is one with decreasing entropy. |
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| Keywords: | Self-gravitation Entropy Collapsing system |
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