区别对待的因次分析方法与传统因次分析方法的比较及其在传热和流体力学中的应用

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• TRANSPORT PHENOMENA & FLUID MECHANICS • 上一篇下一篇

区别对待的因次分析方法与传统因次分析方法的比较及其在传热和流体力学中的应用

F.Alhama; C.N.Madrid

Department of Applied Physics, Technical University of Cartagena, Campus Muralla del Mar, Cartagena 30203, Spain

收稿日期:2007-03-07 修回日期:1900-01-01 出版日期:2007-10-28 发布日期:2007-10-28
通讯作者: F.Alhama

Discriminated dimensional analysis versus classical dimensional analysis and applications to heat transfer and fluid dynamics

F.Alhama; C.N.Madrid

Department of Applied Physics, Technical University of Cartagena, Campus Muralla del Mar, Cartagena 30203, Spain

Received:2007-03-07 Revised:1900-01-01 Online:2007-10-28 Published:2007-10-28
Contact: F.Alhama

摘要/Abstract

摘要： In contrast to classical dimensional analysis, discriminated dimensional analysis assumes that spatial coordinates are dimensionally independent of each other and allows other types of geometrical quantity to be used in the dimensional basis, such as surfaces and angles. As a consequence, discriminated dimensional analysis leads to a lower number of dimensional groups, which makes the solution more precise. Besides, these discriminated groups have a clear physical meaning in terms of force and energy balances. The paper introduces this technique and provides dimensional equations for the main quantities and physical parameters of the heat transfer and fluid flow fields. Two applications are presented to demonstrate the efficiency of this method.

关键词: discriminated dimensional analysis;heat transfer;fluid dynamics;dimensionless number

Abstract: In contrast to classical dimensional analysis, discriminated dimensional analysis assumes that spatial coordinates are dimensionally independent of each other and allows other types of geometrical quantity to be used in the dimensional basis, such as surfaces and angles. As a consequence, discriminated dimensional analysis leads to a lower number of dimensional groups, which makes the solution more precise. Besides, these discriminated groups have a clear physical meaning in terms of force and energy balances. The paper introduces this technique and provides dimensional equations for the main quantities and physical parameters of the heat transfer and fluid flow fields. Two applications are presented to demonstrate the efficiency of this method.

Key words: discriminated dimensional analysis, heat transfer, fluid dynamics, dimensionless number

F.Alhama, C.N.Madrid. 区别对待的因次分析方法与传统因次分析方法的比较及其在传热和流体力学中的应用[J]. CIESC Journal.

F.Alhama, C.N.Madrid. Discriminated dimensional analysis versus classical dimensional analysis and applications to heat transfer and fluid dynamics[J]. .

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区别对待的因次分析方法与传统因次分析方法的比较及其在传热和流体力学中的应用

Discriminated dimensional analysis versus classical dimensional analysis and applications to heat transfer and fluid dynamics

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