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  2015, Vol. 33 Issue (2): 111-115    DOI: 10.3969/j.issn.1674-8530.14.0128
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  
动静叶栅内固液两相过渡过程的数值研究
韩伟, 岳婷, 李仁年, 金毅, 蒋雷, 胡鹏林
兰州理工大学能源与动力工程学院, 甘肃 兰州 730050
Numerical analysis of transition process of solid-liquid two-phase in rotor-stator cascades
Han Wei, Yue Ting, Li Rennian, Jin Yi, Jiang Lei, Hu Penglin
College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
 全文: PDF (2300 KB)   HTML (1 KB)   输出: BibTeX | EndNote (RIS)      背景资料
摘要 为了研究过渡过程动静叶栅内固液两相流的瞬态流动特性,以导叶式离心泵为研究对象,进行几何建模及结构化网格划分,借助Fluent软件,基于Mixture多相流模型、分离涡湍流模型及用户自定义函数,对其全流道进行三维瞬态数值模拟计算.对过渡过程动静叶栅内瞬态流动进行分析,结果表明:过渡过程中,位于动叶进口背面的低压区范围扩大,位于动叶工作面靠近轮缘处的高压区范围缩小;随着时间增加,动叶栅流道内的涡持续产生、合并,并在静叶栅内破碎、耗散,且流量增大,使得动叶进口处的流动滞止,导致动叶进口逐渐产生旋涡;流量未增大到设计流量之前,固相容易沉积在静叶栅出口;在流量瞬态增加到设计流量时,动叶栅子午面中间流线上的固相体积分数总体变小且趋于均匀分布.
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
韩伟
岳婷
李仁年
金毅
蒋雷
胡鹏林
关键词动静叶栅   固液两相流   过渡过程   分离涡模型     
Abstract: In order to study the transient flow characteristics of the solid-liquid two-phase flow in rotor-stator cascades,a centrifugal pump with radial diffusers was chosen as the object of study and its model was established. The structured grid was finished and the three dimensional flow field was simulated based on the mixture multiphase model, the detached eddy simulation model and the user defined function. The internal transient flow was analyzed. The results obtained show that the area of minimum pressure located at the inlet of blade suction side becomes wide during the transition process. Simultaneously, the area of the highest pressure which is at the blade pressure side and near the impeller tip becomes shrinking. The vortexes in the channel of the rotor cascades evolves constantly and vortexes are formed gradually at the inlet of the rotor blade because of the turbulence intensity as the flow rate becomes larger. The solid-phase deposits at the outlet of the stator cascades easily at small flow rates. With the flow rate increases, the global volume fraction of solid-phase decreases and its distribution becomes homogeneous on the meridian middle streamline of the rotor cascades.
Key wordsrotor-stator cascades   solid-liquid two-phase flow   transition process   DES model   
收稿日期: 2014-08-22;
基金资助:

国家自然科学青年基金资助项目(51209113)

通讯作者: 韩伟(1977—),男,安徽宿州人,副教授,博士(hanwei@lut.cn),主要从事水力机械及固液两相流动理论研究.   
作者简介: 岳婷(1991—),女,甘肃陇南人,硕士研究生(通信作者,yuetinglife@sina.com),主要从事水力机械内部固液两相流动研究.
引用本文:   
韩伟,岳婷,李仁年等. 动静叶栅内固液两相过渡过程的数值研究[J]. 排灌机械工程学报, 2015, 33(2): 111-115.
HAN Wei,YUE Ting,LI Ren-Nian et al. Numerical analysis of transition process of solid-liquid two-phase in rotor-stator cascades[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(2): 111-115.
 
[1] 王秀礼,袁寿其,朱荣生,等. 离心泵变工况过渡过程瞬态水力特性研究[J].振动与冲击,2012,31(24):48-53.
[2] Khelladi S, Kouidri S, Bakir F, et al. Predicting tonal noise from a high rotational speed centrifugal fan[J].Journal of Sound and Vibration, 2008, 313(1/2): 113-133.
[3] Wang Xiuli,Yuan Shouqi,Zhu Rongsheng,et al. Tran-sient hydraulic characteristics of a centrifugal pump under variable working conditions[J]. Journal of Vibration and Shock,2012,31(24):48-53.(in Chinese)
[4] Wolfram D, Carolus T H. Experimental and numerical investigation of the unsteady flow field and tone generation in an isolated centrifugal fan impeller[J].Journal of Sound and Vibration,2010,329(21):4380-4397.
[5] Pei Ji, Yuan Shouqi, Yuan Jianping, et al. The influence of the flow rate on periodic flow unsteadiness behaviors in a sewage centrifugal pump[J]. Journal of Hydrodynamics,2013,25(5):702-709.
[6] 袁寿其,薛菲,袁建平,等.离心泵压力脉动对流动噪声影响的试验研究[J].排灌机械,2009, 27(5):287-290.
[7] Feng J,Benra F K,Dohmen H J. Unsteady flow visua-lization at part-load conditions of a radial diffuser pump: By PIV and CFD[J]. Journal of Visualization,2009,12(1):65-72.
[8] Yuan Shouqi, Xue Fei, Yuan Jiangping, et al. Experimental study on impact of pressure fluctuation on flow-noise in centrifugal pump[J]. Drainage and Irrigation Machinery, 2009,27(5):287-290.(in Chinese)
[9] Shigemitsu T,Fukutomi J,Kaji K, et al. Unsteady internal flow conditions of mini-centrifugal pump with splitter blades[J]. Journal of Thermal Science, 2013, 22(1):86-91.
[10] 邵春雷,顾伯勤,陈晔. 离心泵内部非定常压力场的数值研究[J]. 农业工程学报,2009,25(1):75-80.
[11] Yuan S, Yang J, Yuan J, et al. Experimental investigation on the flow-induced noise under variable conditions for centrifugal pumps[J]. Chinese Journal of Mechanical Engineering,2012,25(3):456-462.
[12] Shao Chunlei,Gu Boqin,Chen Ye. Numerical simulation of unsteady pressure field in centrifugal pumps[J]. Transactions of the CSAE,2009,25(1):75-80.(in Chinese)
[13] Choi J S, McLaughlin D K, Thompson D E. Experiments on the unsteady flow field and noise generation in a centrifugal pump impeller[J]. Journal of Sound and Vibration, 2003,263(3):493-514.
[14] 谈明高,王勇,刘厚林,等.叶片数对离心泵内流诱导振动噪声的影响[J].排灌机械工程学报,2012,30(2): 131-135. 浏览
Tan Minggao, Wang Yong, Liu Houlin, et al.Effects of number of blades on flow induced vibration and noise of centrifugal pumps[J].Journal of Drainage and Irrigation Machinery Engineering,2012,30(2):131-135.(in Chinese) 浏览
[15] 刘厚林,王勇,袁寿其,等.叶轮出口宽度对离心泵流动诱导振动噪声的影响[J].华中科技大学学报:自然科学版,2012,40(1):123-127.
[16] Liu Houlin,Wang Kai,Kimhy Youngbum, et al. Experimental investigation of the unsteady flow in a double-blade centrifugal pump impeller[J]. Science China:Technological Sciences,2013,56(4):812-817.
[17] Liu Houlin, Wang Yong, Yuan Shouqi, et al.Effects of impeller outlet width on the vibration and noise from centrifugal pumps induced by flow[J].J Huazhong Univ of Sci & Tech: Natural Science Edition,2012,40(1):123-127.(in Chinese)
[18] 王勇,刘厚林,袁寿其,等.不同叶片包角离心泵空化振动和噪声特性[J].排灌机械工程学报,2013,31(5):390-393. 浏览
Wang Yong, Liu Houlin, Yuan Shouqi, et al. Characteristics of cavitation vibration and noise in centrifugal pumps with different vane wrap angles[J]. Journal of Drainage and Irrigation Machinery Engineering,2013,31(5):390-393.(in Chinese) 浏览
[19] Lighthill M J. On sound generated aerodynamically: I.General theory[C]//Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1952, 211(1107):564-587.
[20] Tan Minggao,Yuan Shouqi,Liu Houlin, et al. Numerical research on performance prediction for centrifugal pumps[J]. Chinese Journal of Mechanical Engineering,2010,23(1):21-26.
[21] 黎义斌,赵伟国,王秀勇,等. 离心泵变工况流场分析及数值模拟[J]. 兰州理工大学学报,2007,33(6):43-46.
[22] Kato C, Kaiho M, Manabe A. An overset finite-element large-eddy simulation method with applications to turbomachinery and aeroacoustics[J]. Journal of Applied Mechanics, 2003,70(1):32-43.
[23] Li Yibin,Zhao Weiguo,Wang Xiuyong, et al. Analysis and numeric simulation of off-design flow field in centri-fugal pump[J]. Journal of Lanzhou University of Technology,2007,33(6):43-46.(in Chinese)
[24] Lu F A, Qi D T, Wang X J,et al. A numerical optimization on the vibroacoustics of a centrifugal fan volute[J]. Journal of Sound and Vibration, 2012,331(10):2365-2385.
[25] 王勇,刘庆,刘东喜,等.不同叶片冲角离心泵内流诱导振动噪声研究[J].流体机械,2013,41(7):1-4.
[26] Zhang Yuliang,Li Yi,Cui Baoling,et al. Numerical si-mulation and analysis of solid-liquid two-phase flow in centrifugal pump[J]. Chinese Journal of Mechanical Engineering, 2013,26(1):53-60.
[27] Wang Yong,Liu Qing,Liu Dongxi,et al.Analysis of flow induced vibration and noise in centrifugal pumps with different blade inlet incidence angle[J].Fluid Machi-nery,2013,41(7):1-4.(in Chinese)
[28] Zhu Zuchao,Guo Xiaomei,Cui Baoling,et al. External characteristics and internal flow features of a centrifugal pump during rapid startup[J]. Chinese Journal of Mechanical Engineering,2011,24(5):798-804.
[29] 武鹏,吴大转,李志锋,等. 离心泵流量突增过程瞬态流动研究[J]. 工程热物理学报,2010,31(3):420-422.
[30] Parrondo J,Pérez J, Barrio R,et al. A simple acoustic model to characterize the internal low frequency sound field in centrifugal pumps[J]. Applied Acoustics,2011,72(1):59-64.
[31] 刘厚林,丁剑,王勇,等. 基于大涡模拟的离心泵水动力噪声数值模拟[J]. 机械工程学报,2013,49(18):177-183.
[32] Wu Peng,Wu Dazhuan,Li Zhifeng, et al. Study of transient flow in centrifugal pump during flow impulsively increase process[J]. Journal of Engineering Thermophy-sics,2010,31(3):420-422.(in Chinese)
[33] 李仁年,刘殿兴,董志强,等.水泵水轮机“S”形区全流道数值模拟[J].排灌机械工程学报,2013,31(5):401-405. 浏览
Li Rennian,Liu Dianxing,Dong Zhiqiang, et al. Nume-rical analysis of flow in pump-turbine operating in S-shape region[J]. Journal of Drainage and Irrigation Machinery Engineering,2013,31(5):401-405.(in Chinese) 浏览
[1] 程成, 施卫东, 张德胜, 曹卫东, 邢津. 后掠式双叶片污水泵固液两相流动规律的数值模拟[J]. 排灌机械工程学报, 2015, 33(2): 116-122.
[2] 杨凌波, 肖业祥, 唐兵, 王正伟. 基于固液两相流的纸浆泵磨损预测[J]. 排灌机械工程学报, 2015, 33(2): 98-103.
[3] 程效锐,, 张楠,, 赵伟国,. 双吸泵输送含沙水流时蜗壳内压力脉动特性[J]. 排灌机械工程学报, 2015, 33(1): 37-42.
[4] 陈世凡, 周大庆, 陈洋. 基于弱可压缩模型的抽蓄电站引水系统数值模拟[J]. 排灌机械工程学报, 2014, 32(9): 765-770.
[5] 汪家琼, 叶群, 闫科委, 冯耀宁, 余旭男. 颗粒直径对渣浆泵冲蚀磨损性能的影响[J]. 排灌机械工程学报, 2014, 32(10): 840-844.
[6] 曾洪涛, 王智欣, 田文刚, 林琳琳. 基于ANN的抽水蓄能电站建模与过渡过程优化[J]. 排灌机械工程学报, 2014, 32(10): 864-870.
[7] 朱荣生,, 林鹏, 龙云, 王振伟, 习毅. 螺旋轴流泵的固液两相流动数值模拟[J]. 排灌机械工程学报, 2014, 32(1): 6-11.
[8] 王玲, 王福军, 张嘉辰, 李雪楠. 压力波动预止阀对泵站水锤的影响[J]. 排灌机械工程学报, 2013, 31(5): 413-417.
[9] 李仁年, 刘殿兴, 董志强, 魏显著. 水泵水轮机“S”形区全流道数值模拟[J]. 排灌机械工程学报, 2013, 31(5): 401-405.
[10] 樊红刚, 崔赫辰, 陈乃祥. 导叶关闭规律非线性评价函数及多工况优化[J]. 排灌机械工程学报, 2013, 31(3): 230-235.
[11] 郑小波, 同焕珍. 水泵水轮机全特性曲线的改进Suter变换[J]. 排灌机械工程学报, 2013, 31(12): 1061-1064.
[12] 汪家琼, 蒋万明, 孔繁余, 屈晓云, 宿向辉. 基于Particle模型固液两相流离心泵流场数值模拟[J]. 排灌机械工程学报, 2013, 31(10): 846-850.
[13] 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.
[14] 李仁年1, 权辉1, 韩伟1, 李琪飞1, 苏清苗2. 螺旋离心泵轴向力的数值计算与分析[J]. 排灌机械工程学报, 2012, 30(5): 527-531.
[15] 程效锐, 李仁年, 黎义斌, 范赢, 申立新. 螺旋离心泵叶片变螺距型线方程[J]. 排灌机械工程学报, 2012, 30(3): 289-294.

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