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Issue:
Variation of Parandtl Number of Gas in Dilute and Dense State
Author(s):
Wang Wen
,
Liu Zhigang
,
Zhang Zhi
Pages:
77
-
80
Year:
1999
Issue:
1
Journal:
JOURNAL OF XI'AN JIAOTONG UNIVERSITY
Keyword:
普朗特数
;
分子间力
;
流体
;
Abstract:
反映流体中能量和动量迁移过程相互影响的无因次组合数--普朗特数,在热力计算中具有重要的作用.作者从分子运动理论角度出发,对普朗特数进行了分析.通过氩、氮和水蒸气3种常见物质的普朗特数的变化情况,对普朗特数的一些基本变化规律进行了初步研究,并提出了适用于这3种物质的普朗特数变化规律的经验公式.
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