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  2019, Vol. 37 Issue (6): 528-533    DOI: 10.3969/j.issn.1674-8530.17.0168
流体工程 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
喷水推进器全流道空化流动数值模拟
岑春海,潘中永*,王雪豹
江苏大学国家水泵及系统工程技术研究中心, 江苏 镇江 212013
Numerical simulation of cavitation flow in whole flow path of water-jet propulsor
CEN Chunhai, PAN Zhongyong*, WANG Xuebao
National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China
 全文: PDF (3612 KB)   HTML (1 KB)   输出: BibTeX | EndNote (RIS)      背景资料
摘要 为了研究对旋轴流式喷水推进器内部空化特性,基于ANSYS-CFX软件,利用SST k-ω湍流模型和Zwart空化模型,对不同转速以及设计航速条件下喷水推进器进行全流域空化数值计算,得到了喷水推进器两级叶轮叶片以及叶轮流道内空泡体积分数分布情况.结果表明:在喷水推进器首级叶轮吸力面轮缘处最先发生空化,随着转速的增加,空泡不断地向叶轮轮毂处蔓延,并且体积分数逐渐增加;由于非均匀进流的影响,次级叶轮吸力面进口至出口中部低压区开始出现空泡;且受流动传递性的影响,次级叶轮处在靠近水平面下半叶轮通道内的叶片空化更为严重;在不同的NPSHr下,由于首级叶轮的预压,次级叶轮压力面一直没有空泡附着,表明对旋轴流式喷水推进器具有良好的抗空化性能.
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
岑春海
潘中永*
王雪豹
关键词喷水推进器   空化   首、次级叶轮   空泡体积分数   数值模拟     
Abstract: In order to reveal the distribution of cavitation inside the water-jet propulsor, the SST k-ω turbulence model and the Zwart cavitation model, based on the ANSYA CFX software, were used to calculate the steady value of the whole flow path of the water-jet propulsor at different speeds. The vo-lume fraction distribution of bubbles in two-stage impeller blades and the flow path in the water-jet propulsor at different speeds was obtained. The results show that the cavitation occurred initially in the local low-pressure zone at the leading edge of the front impeller suction surface. As the speed increases, the bubbles spread from the leading edge to the hub, and the volume fraction gradually increases. owing to the impact of non-uniform flow, the rear impeller suction surface in the middle of the low-pressure area begins to appear cavitation. With the increasing of the rotational speed, the cavitation is expanded from the middle of the blade to the outlet, and the cavitation is more serious in the lower half of flow path of the rear impeller. Under different NPSHr, there is no cavitation in the rear impeller pressure surface due to the pre-pressing of the front impeller, which shows that the counter-rotating axial-flow water-jet propulsor has good cavitation performance.
Key wordswater-jet propulsion   cavitation   front and rear impeller   bubbles volume fraction   numerical simulation   
收稿日期: 2017-07-22;
基金资助:江苏省自然科学基金资助项目(BK20151342)
引用本文:   
岑春海,潘中永*,王雪豹. 喷水推进器全流道空化流动数值模拟[J]. 排灌机械工程学报, 2019, 37(6): 528-533.
CEN Chun-Hai,PAN Zhong-Yong-*,WANG Xue-Bao. Numerical simulation of cavitation flow in whole flow path of water-jet propulsor[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(6): 528-533.
 
[1] 何杰,王永生,丁江明,等. 喷水推进泵空化预测原理和方法的研究[J]. 中国船修,2006,19(2):24-26.
HE Jie, WANG Yongsheng, DING Jiangming, et al. Research on principle and method of cavitation pre-diction of waterjet propulsion[J]. Chinese ship repair,2006,19(2):24-26.(in Chinese)
[2] 段向阳,王永生,苏永生,等.喷水推进器空化监测技术研究[J]. 舰船科学技术,2009,31(5):39-41.
DUAN Xiangyang,WANG Yongshen,SU Yongsheng,et al.Research on monitoring techniques of water-jet cavitation[J].Ship science and technology,2009,31(5): 39-41.(in Chinese)
[3] MARIN K. Verification and validation study of URANS simulations for an axial waterjet propelled large high-speed ship[J]. Journal of marine science & technology,2011,16(4):434-447.
[4] 靳栓宝,王永生. 基于三元设计及数值试验轴流泵抗空化性能[J].排灌机械工程学报,2013,31(9): 763-767. 浏览
JIN Shuanbao, WANG Yongsheng. Anti-cavitation performance of axial-flow pump based on ternary design and numerical test[J]. Journal of drainage and irrigation machinery engineering,2013,31(9):763-767.(in Chinese)
[5] 常书平,王永生.基于CFD 的混流泵空化特性研究[J].排灌机械工程学报,2012,30(2):171-175,180. 浏览
CHANG Shuping, WANG Yongsheng. Research on ca-vitation characteristics of mixed flow pump based on CFD[J]. Journal of drainage and irrigation machinery engineering,2012, 30(2):171-175,180.(in Chinese)
[6] SEDLAR M, ZIMA P, BAJOREK M, et al. CFD analy-sis of unsteady cavitation phenomena in multistage pump with inducer[C]//IOP Conference Series: Earth and Environmental Science, 2012.
[7] 刘承江,王永生,张志宏. 喷水推进器数值模拟所需流场控制体的研究[J]. 水动力学研究与进展,2008,23(5):592-595.
LIU Chengjiang, WANG Yongsheng, ZHANG Zhihong. Research on the required flow field control for numerical simulation of water jet propeller[J]. Research and development of hydrodynamics,2008,23(5):592-595.(in Chinese)
[8] VAN Terwisga.Water jet-hull interaction[D]. Delft:Delft University of Technology,1996.
[9] 燕浩,刘梅清,梁兴,等.基于正交试验大型轴流泵空化特性的数值模拟[J]. 华中科技大学学报(自然科学版),2014,42(12):35-42.
YAN Hao, LIU Meiqing, LIANG Xing, et al. Numerical simulation of cavitation characteristics of large Axial-flow pump based on orthogonal experiment[J].Journal of Huazhong University of Science and Technology(natural science edition),2014,42(12):35-42.(in Chinese)
[10] CHAHINE G L, HSIAO C T. Modeling cavitation ero-sion using fluid-material interaction simulations[J]. Inter-face focus,2015,5(5):1-6.
[1] 施卫东,*,侯云鹤,周岭,李跃民,薛少辉. 不同级数深井离心泵性能的数值模拟与试验[J]. 排灌机械工程学报, 2019, 37(7): 553-558.
[2] 袁建平,邓凡杰,张克玉,崔强磊,司乔瑞*. 气液两相流下叶片泵内部流动研究现状[J]. 排灌机械工程学报, 2019, 37(7): 565-573.
[3] 王燕燕,,赵伟国,*,韩向东,,郑英杰,. 基于叶片包角和出口安放角对叶轮的改进设计[J]. 排灌机械工程学报, 2019, 37(7): 574-579.
[4] 徐海良,*,周永兴,杨放琼,,吴波,. 进料流量对深海矿石输送设备内流特性影响分析[J]. 排灌机械工程学报, 2019, 37(7): 618-624.
[5] 周颖,郑源*,何中伟,孙奥冉,张付林,汪昊蓝. 大型轴流泵反向发电压力脉动及流固耦合[J]. 排灌机械工程学报, 2019, 37(6): 480-485.
[6] 刘建河,李星光*,许晏铭. 喷针-环形电极配置对感应荷电喷雾的影响[J]. 排灌机械工程学报, 2019, 37(6): 521-527.
[7] 岳书波,张鸿清*,刁明军,代尚逸. 泄洪闸胸墙压坡段的数值模拟[J]. 排灌机械工程学报, 2019, 37(6): 491-497.
[8] 赵伟国,,潘绪伟,*,宋启策,,李尚升,. 叶片进口边穿孔对离心泵空化性能的影响[J]. 排灌机械工程学报, 2019, 37(6): 461-468.
[9] 杨孙圣,邵珂*,戴韬. 叶片包角对混流泵作透平的特性影响[J]. 排灌机械工程学报, 2019, 37(6): 475-479.
[10] 赵道利*,高诚锋,孙维鹏,郭鹏程,马薇. 泄水锥加长与主轴中心孔补水对水轮机尾水管流态的影响[J]. 排灌机械工程学报, 2019, 37(5): 413-419.
[11] 江伟*,蒋婷, 朱相源. 余热利用换热器硫酸和水蒸气耦合凝结数值模拟[J]. 排灌机械工程学报, 2019, 37(5): 420-426.
[12] 张凌峰,孙见君*,马晨波,张玉言. 一种钠冷快堆核主泵动静压导轴承间隙流体动力特性分析[J]. 排灌机械工程学报, 2019, 37(5): 427-434.
[13] 边若鹏,昝丙合,朱建勇*,何淼. 侧风对螺旋桨气动特性影响的数值模拟[J]. 排灌机械工程学报, 2019, 37(5): 435-440.
[14] 杨从新,,张扬,*,钱晨,. 专用堆型对应的核主泵正反转流动数值模拟[J]. 排灌机械工程学报, 2019, 37(5): 381-386.
[15] 柏宇星,*,刘莹莹,孔繁余,夏斌,戴韬. 叶轮外径对混流泵作透平性能的影响[J]. 排灌机械工程学报, 2019, 37(4): 284-288.

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