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努塞尔数

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努塞尔特数流体力学中的無因次參数,以德国物理学家威廉·努塞尔特(Wilhelm Nusselt)的名字命名,其意義為流體系統的特徵长度与热边界层厚度之比,计算式为:

其中,

  • 为热对流系数
  • 特征长度
  • 为流体的热导率

参见

[编辑]


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努塞尔数
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