LAMINAR DEVELOPING FLOW IN THE ENTRANCE REGION OF ROTATING CURVED PIPES

被引：7

作者：

Ma Jian-feng ^{[1
]}

Shen Xin-rong ^{[1
]}

Zhang Ming-kan ^{[1
]}

Zhang Ben-Zhao ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mech, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF HYDRODYNAMICS | 2006年 / 18卷 / 04期

基金：

中国国家自然科学基金;

关键词：

developing flow; secondary flow; rotating curved pipe;

D O I：

10.1016/S1001-6058(06)60114-5

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Three-dimensional laminar flow in the entrance region of rotating curved pipes was investigated. The governing equations were written in an orthogonal curvilinear coordinate system and solved with a fully three-dimensional numerical method. The development of secondary flow, axial velocity, local and average friction factors for different cases of rotation were given and discussed in detail. The results show that rotation influences the flow structure and friction factor greatly and that the secondary flow is sink-type in the early stage of development and then turns to vortex structure. The average friction factor and the intensity of secondary flow have drastic decrease near the entrance. At some proper rotation, the average friction factor can be noticeably reduced.

引用

页码：418 / 423

页数：6

共 50 条

[1] LAMINAR DEVELOPING FLOW IN THE ENTRANCE REGION OF ROTATING CURVED PIPES
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[J]. Journal of Hydrodynamics, 2006, (04) : 418 - 423
[2] Laminar Developing Flow in the Entrance Region of Rotating Curved Pipes
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Xin-rong Shen
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[J]. Journal of Hydrodynamics, 2006, 18 : 418 - 423
[3] Laminar flow in rotating curved pipes
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[10] LAMINAR FLOW IN THE DEVELOPING REGION OF A ROTATING PIPE.
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