| LAMINAR DEVELOPING FLOW IN THE ENTRANCE REGION OF ROTATING CURVED PIPES |
| |
| 作者姓名： | MA Jian-feng SHEN Xin-rong ZHANG Ming-kan ZHANG Ben-Zhao |
| |
| 作者单位： | MA Jian-feng，SHEN Xin-rong，ZHANG Ming-kan，ZHANG Ben-Zhao Department of Mechanics，Zhejiang University，Hangzhou 310027，China |
| |
| 摘 要： | 1. INTRODUCTION The flow in rotating curved pipes with a constant circular cross-section have found wide applications in heat exchangers, piping systems, electric motors, chemical reactors and many other engineering systems. One of the principle features …
|
| 关 键 词： | 发展流 二次流 弯管喷头 入口区域 控制方程 |
| 收稿时间： | 2005-01-19 |
LAMINAR DEVELOPING FLOW IN THE ENTRANCE REGION OF ROTATING CURVED PIPES |
| |
| MA Jian-feng SHEN Xin-rong ZHANG Ming-kan ZHANG Ben-Zhao.LAMINAR DEVELOPING FLOW IN THE ENTRANCE REGION OF ROTATING CURVED PIPES[J].Journal of Hydrodynamics,2006,18(4):418-423. |
| |
| Authors: | MA Jian-feng SHEN Xin-rong ZHANG Ming-kan ZHANG Ben-Zhao |
| |
| Affiliation: | 1. Engineering Faculty, Mechanical Engineering Department, Ferdowsi University of Mashhad, Iran;2. Faculty of Mechanical and Energy Engineering, Shahid Beheshti University, A.C., Tehran, Iran;1. School of Civil Engineering, Central South University, 410075 Changsha, China;2. Department of Geotechnical Engineering, School of Civil Engineering, Southwest Jiaotong University, 610031 Chengdu, China;1. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CCT-La Plata-CONICET, Universidad Nacional de La Plata, Diag 113 y 64, La Plata, Argentina;2. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas, PROBIEN (CONICET-UNCo), Buenos Aires 1400, Neuquén, Argentina;3. Grupo de Procesos de Oxidación Avanzada, Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, Campus de Alcoy, Alcoy, Spain |
| |
| Abstract: | 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. |
| |
| Keywords: | developing flow secondary flow rotating curved pipe |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
|
