排灌机械工程学报
   首页  学报介绍  编 委 会  作者园地  征订启事  编校法规  编读往来  录用公告  广告合作   行业新闻  留  言  English 
排灌机械工程学报  2012, Vol. 30 Issue (6): 655-659    DOI: 10.3969/j.issn.1674-8530.2012.06.008
泵理论与技术 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
液体射流泵内部流动分析:Ⅰ试验与三维数值模拟
 王松林, 王玉川, 桂绍波, 高传昌, 曹树良
(1.华北水利水电学院水利学院, 河南 郑州 450011; 2.清华大学水沙科学与水利水电工程国家重点实验室, 北京 100084; 3.长江
勘测规划设计研究有限责任公司, 湖北 武汉 430010; 4.华业水利水电学院电力学院, 河南 郑州 450011)
Analysis of flow in liquid jet pump—Part Ⅰ:Experiment and threedimension numerical simulation
 WANG  Song-Lin, WANG  Yu-Chuan, GUI  Shao-Bo, GAO  Chuan-Chang, CAO  Shu-Liang
(1.School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou, Henan 450011, China; 2.State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China; 3.Changjiang Institute of Survey, Planning, Design and Research, Wuhan, Hubei 430010, China; 4. Institute of Electric Power, North China University of Water Rosources and Electric Power Zhengzhou, Henan 450011, China)
 全文: PDF (2047 KB)   HTML (1 KB)   输出: BibTeX | EndNote (RIS)      背景资料
文章导读 null
摘要 对偏向吸入和水平放置的液体射流泵的基本性能和内部流动分别进行了试验和三维数值模拟.数值模拟采用k-ε双方程湍流模型和SIMPLE算法,数值模拟结果与试验结果在最高效率工况附近基本重合.利用数值模拟结果对射流泵内两股流体的混合过程和流动规律进行了分析,发现对于大流量工况(流量比q>08),在喉管入口06倍喉管直径长度内,出现由局部损失和摩阻损失引起的当地压力比降低,被吸流体能量损失的现象;随着流量比的增大,单位被吸流体获得能量减少,两股流体传能距离增加,速度混合均匀长度为6~8倍喉管直径,大于喉管内压力比达到峰值的长度;喉管内两股流体混合流动过程与形成充分发展湍流过程类似;对偏向吸入的射流泵,吸入腔体内流动不对称,导致内部截面存在二次流动诱导旋涡,但是喉管内二次流动速度远小于主流速度,因此采用二维理论分析能够反映射流泵性能的主要特征.
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
王松林
王玉川
桂绍波
高传昌
曹树良
关键词射流泵   内部流动   混合过程   试验   数值模拟     
Abstract: The performance of a horizontally installed liquid jet pump with side suction was tested and its internal flow was analyzed by numerical simulation. The standard k-ε twoequation turbulence model and SIMPLE method were adopted in the numerical simulations. The simulated performance parameters agreed well with experimental ones at the best efficiency point. Twofluid mixing process and its flow pattern in the pump were analyzed as well based on the numerical simulation results. At a large flow ratio (q>0.8), a reduced local pressure ratio and the suctioned liquid with loss of energy are observed in the region from throat inlet to 0.6 times the throat diameter down stream due to mixing and local frictional losses. As the flow ratio increases, the energy obtained by the suction fluid is decreased, thus the distance where an energy transfer takes place between two fluids increases; the two fluids velocity becomes uniform once the suctioned liquid travels in the nozzle for a distance as long as 6-8 times the throat diameter. However, the peak pressure occurs in less than that distance. Such a two liquid mixing process in the throat is similar to that of fully developed turbulent flow. For the side suction jet pump, there are vortexes in the crosssection induced by a secondary flow due to asymmetric flow in the suction chamber, but the velocity of the secondary flow is so smaller than the mainstream velocity in the throat that the major characteristics of the jet pump can be obtained by a two dimensional theoretical analysis.
Key wordsjet pump   internal flow   mixing process   experiment   numerical simulation   
收稿日期: 2012-05-24; 出版日期: 2012-11-30
基金资助:

 国家自然科学基金资助项目(51176088); 水利部公益性行业科研专项经费资助项目(201201085); 中国博士后科学基金面上资助项目(2011M500315)

通讯作者: 王松林(1972—),男,黑龙江铁力人,副教授(wangsonglin@ncwu.edu.cn),主要从事水利水电工程教学与研究.   
作者简介: 王玉川(1983—),男,河南林州人,博士研究生(yc.wang@qq.com),主要从事流体机械及工程研究.
引用本文:   
王松林,王玉川,桂绍波等. 液体射流泵内部流动分析:Ⅰ试验与三维数值模拟[J]. 排灌机械工程学报, 2012, 30(6): 655-659.
WANG Song-Lin,WANG Yu-Chuan,GUI Shao-Bo et al. Analysis of flow in liquid jet pump—Part Ⅰ:Experiment and threedimension numerical simulation[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(6): 655-659.
 
[1] 陆宏圻.射流泵技术的理论及应用[M].北京:水利电力出版社,1989.
[2] Gazzar M E, Meakhail T, Mikhail S. Numerical study of flow inside an annular jet pump[J]. Journal of Thermophysics and Heat Transfer, 2006, 20(4):930-932.[3]向清江,袁寿其,何培杰, 等. 液气射流泵内部流场的数值计算[J]. 江苏大学学报:自然科学版,2008, 29(3):231-235.
[3] Xiang Qingjiang, Yuan Shouqi, He Peijie, et al. Numerical simulation of liquid jet gas pump[J]. Journal of Jiangsu University: Natural Science Edition, 2008, 29(3): 231-235.(in Chinese)
[4] Yamazaki Y, Yamazaki A, Narabayashi T, et al. Studies on mixing process and performance improvement of jet pumps[J]. Journal of Fluid Science and Technology, 2007,2(1):238-247.
[5] Fan J, Eves J, Thompson H M, et al. Computational fluid dynamic analysis and design optimization of jet pumps[J]. Computers & Fluids, 2011,46(1):212-217.
[6] Narabayashi T, Yamazaki Y, Kobayshi H, et al. Flow analysis for single and multinozzle jet pump[J]. JSME International Journal, Series B, 2006,49(4):933-940.
[7] 龙新平,程茜,韩宁, 等. 射流泵最佳喉嘴距的数值模拟[J]. 核动力工程,2008,29(1):35-38.
Long Xinping, Cheng Qian, Han Ning, et al. Numerical simulation of optimal nozzletothroat clearance of jet pump[J]. Nuclear Power Engineering, 2008,29(1):35-38.(in Chinese)
[8] Yamazaki Y, Nakayama T, Narabayashi T, et al. Effect of surface roughness on jet pump performance[J]. JSME International Journal, Series B, 2006,49(4):928-932.
[1] 向清江, 恽强龙, 李红, 吴燕兰. 附壁振荡液气射流泵工作性能试验研究[J]. 排灌机械工程学报, 2012, 30(6): 650-654.
[2] 施卫东, 王川, 司乔瑞, 徐静, 陆伟刚. 级间间隙对新型井泵性能的影响[J]. 排灌机械工程学报, 2012, 30(6): 627-631.
[3] 成立, Bart P.M. van Esch, 刘超, 周济人, 金燕. 喷水推进混流泵叶片径向力[J]. 排灌机械工程学报, 2012, 30(6): 636-640.
[4] 郑铁刚, 戴会超, 丁全林. 不同突扩比下空间淹没水跃的水力计算[J]. 排灌机械工程学报, 2012, 30(6): 670-676.
[5] 李良超, 曾祥炜, 向科峰, 徐斌, 宋丹路. 梭式止回阀开启过程的数值模拟[J]. 排灌机械工程学报, 2012, 30(6): 710-714.
[6] 钱忠东, 郜元勇, 谢华, 王志远. 基于CFD技术的双吸式离心泵转轮副叶片优化[J]. 排灌机械工程学报, 2012, 30(5): 503-507.
[7] 吴卫国, 薛世峰. 任意曲线坐标系下二维浅水方程的数值模拟[J]. 排灌机械工程学报, 2012, 30(5): 598-602.
[8] 施卫东, 龙飞, 张德胜, 冷洪飞, 王国涛. 潜水轴流泵内部固液两相流动的数值模拟[J]. 排灌机械工程学报, 2012, 30(5): 508-512.
[9] 何秀华1, 禚洪彩1, 杨嵩1, 邓志丹2, 李富1. 无阀压电泵用平面锥管内部流动特性[J]. 排灌机械工程学报, 2012, 30(5): 532-537.
[10] 杨从新, 杜媛英, 黎义斌. 导叶参数对混流泵水阻系数及效率的影响[J]. 排灌机械工程学报, 2012, 30(5): 538-542.
[11] 程伟平, 章军军, 陈益民, 高悦. 超短竖井式进/出水口的水力控制[J]. 排灌机械工程学报, 2012, 30(5): 548-552.
[12] 袁建平, 王龙滟, 何志霞, 刘晓凡. 室内置换通风与混合通风的效果对比[J]. 排灌机械工程学报, 2012, 30(5): 563-566.
[13] 赵振宙, 原红红, 郑源, 黄娟, 赵振宁. 直叶片达里厄风轮流场非定常数值计算[J]. 排灌机械工程学报, 2012, 30(5): 567-572.
[14] 袁寿其, 胡博, 陆伟刚, 李彤, 黄志攀. 中比转数离心泵多工况设计[J]. 排灌机械工程学报, 2012, 30(5): 497-502.
[15] 周凌九, 袁玲丽. 射流泵液固两相流特性三维大涡模拟[J]. 排灌机械工程学报, 2012, 30(5): 522-526.

江苏大学梦溪校区(镇江市梦溪园巷30号)图书馆5楼 0511-84440893 传真0511--84440033
Copyright 江苏大学杂志社 2010-2015 All Rights Reserved