离心叶轮叶型参数化设计研究
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摘要
基于最大流量设计原则,建立离心叶轮的基本结构与气动参数;采用子午型线设计、叶片中弧线设计和叶片厚度设计方法获得叶轮叶型的三维参数。以Eckardt计,并采用数值计算方法对新叶轮进行三维模拟,通过与原叶轮的性能对比验证了本文参数化设计的有效性。
Based on the principle of maximum mass flow,the basic structure and aerodynamic parameters of centrifugal impeller were established,and the 3D parameters were obtained by a design method that integrates the endwalls(hub and shroud)design,the blade camber curve design and the blade thickness design. A brand-new parametric design was carried out on the impeller with Eckardt impeller as the reference object and under the premise that the performance of the original design point is guaranteed. The numerical calculation method was used to carry out 3D simulation of the new impeller. The feasibility of parametric design herein was verified through comparison with the performance of the original impeller.
Based on the principle of maximum mass flow,the basic structure and aerodynamic parameters of centrifugal impeller were established,and the 3D parameters were obtained by a design method that integrates the endwalls(hub and shroud)design,the blade camber curve design and the blade thickness design. A brand-new parametric design was carried out on the impeller with Eckardt impeller as the reference object and under the premise that the performance of the original design point is guaranteed. The numerical calculation method was used to carry out 3D simulation of the new impeller. The feasibility of parametric design herein was verified through comparison with the performance of the original impeller.
引文
[1]徐忠.离心式压缩机原理[M].北京:机械工业出版社,1990.
[2]WU Chunghua.A general theory of three-dimensional flow in subsonic and supersonic turbomachines of axial-,radial-,and mixed-flow types[R].NACATN2604,1952:16-18.
[3]Jansen W,Kirschner A M.Impeller blade design method for centrifugal compressors[J].Nasa Special Publication,1974,304.
[4]谷传文,陈榴,吴萍,等.基于环量分布的离心叶轮S2流面设计与优化[J].流体机械,2013,41(3):24-28.
[5]周正贵,汪光文.基于数值优化方法的离心压气机工作轮气动设计[J].航空学报,2006,27(1):10-15.
[6]Li X,Zhao Y,Liu Z,et al.The optimization of a centrifugal impeller based on a new multi-objective evolutionary strategy[C]//ASME Turbo Expo 2016:Turbomachinery Technical Conference and Exposition.2016:V02CT39A022.
[7]刘正先,韩博,鲁业明.目标优化算法在叶片参数化设计中的应用[J].天津大学学报,2017,50(1):19-27.
[8]方志阳,骆天舒,徐少杰,等.叶片中弧线的一种混合算法研究[J].机电工程,2018,35(7):717-720.
[9]Rusch D,Casey M.The design space boundaries for high flow capacity centrifugal compressors[J].Journal of Turbomachinery,2012,135(3):543-556.
[10]Dixon S L,Hall C A.Fluid mechanics and thermodynamics of turbomachinery[J].Fluid Mechanics&Thermodynamics of Turbomachinery,1978.
[11]单玉姣,郑宁.超声速叶型中弧线优化设计[J].推进技术,2016,37(6):1084-1091.
[12]刘小民,张文斌.采用遗传算法的离心叶轮多目标自动优化设计[J].西安交通大学学报,2010,44(1):31-35.
[13]杨敏官,陆胜,高波,等.叶片厚度对混流式核主泵叶轮能量性能影响研究[J].流体机械,2015(5):28-32.
[14]吴玉珍,冉治通.微型半开式叶轮高速离心泵结构对效率影响的试验研究[J].化工设备与管道,2018,(3):42-45.
[15]Eckardt D.Instantaneous measurements in the jetwake discharge flow of a centrifugal compressor impeller[J].Journal of Engineering for Gas Turbines&Power,1974,97(97):337-345.
[16]Eckardt D.Detailed flow investigations within a hig speed centrifugal compressor impeller[J].Journal of Fluids Engineering,1976,98(98):391-402.
[2]WU Chunghua.A general theory of three-dimensional flow in subsonic and supersonic turbomachines of axial-,radial-,and mixed-flow types[R].NACATN2604,1952:16-18.
[3]Jansen W,Kirschner A M.Impeller blade design method for centrifugal compressors[J].Nasa Special Publication,1974,304.
[4]谷传文,陈榴,吴萍,等.基于环量分布的离心叶轮S2流面设计与优化[J].流体机械,2013,41(3):24-28.
[5]周正贵,汪光文.基于数值优化方法的离心压气机工作轮气动设计[J].航空学报,2006,27(1):10-15.
[6]Li X,Zhao Y,Liu Z,et al.The optimization of a centrifugal impeller based on a new multi-objective evolutionary strategy[C]//ASME Turbo Expo 2016:Turbomachinery Technical Conference and Exposition.2016:V02CT39A022.
[7]刘正先,韩博,鲁业明.目标优化算法在叶片参数化设计中的应用[J].天津大学学报,2017,50(1):19-27.
[8]方志阳,骆天舒,徐少杰,等.叶片中弧线的一种混合算法研究[J].机电工程,2018,35(7):717-720.
[9]Rusch D,Casey M.The design space boundaries for high flow capacity centrifugal compressors[J].Journal of Turbomachinery,2012,135(3):543-556.
[10]Dixon S L,Hall C A.Fluid mechanics and thermodynamics of turbomachinery[J].Fluid Mechanics&Thermodynamics of Turbomachinery,1978.
[11]单玉姣,郑宁.超声速叶型中弧线优化设计[J].推进技术,2016,37(6):1084-1091.
[12]刘小民,张文斌.采用遗传算法的离心叶轮多目标自动优化设计[J].西安交通大学学报,2010,44(1):31-35.
[13]杨敏官,陆胜,高波,等.叶片厚度对混流式核主泵叶轮能量性能影响研究[J].流体机械,2015(5):28-32.
[14]吴玉珍,冉治通.微型半开式叶轮高速离心泵结构对效率影响的试验研究[J].化工设备与管道,2018,(3):42-45.
[15]Eckardt D.Instantaneous measurements in the jetwake discharge flow of a centrifugal compressor impeller[J].Journal of Engineering for Gas Turbines&Power,1974,97(97):337-345.
[16]Eckardt D.Detailed flow investigations within a hig speed centrifugal compressor impeller[J].Journal of Fluids Engineering,1976,98(98):391-402.