王思杰;梁迪;闫乐;李意民;冯非凡;周忠宁;孙子钦;
Wang Sijie;Liang Di;Yan Le;Li Yimin;Feng Feifan;Zhou Zhongning;Sun Ziqin;China University of Mining and Technology;

• 1:中国矿业大学

摘要(Abstract)：

为了进一步优化传统低压轴流风机性能,提出了一种等环量设计与变环量设计结合的新型风机叶片设计手段——等-变环量设计,试验测试了等-变环量前掠叶片的性能参数,并采用数值模拟的方法详细地验证了本方法所设计出叶片的性能与内流特征。数值研究结果表明,相比于传统扭叶片,等-变环量设计方法对低压轴流风机前掠叶片的气动性能优化更加明显,设计工况下全压可提升4%;等-变环量设计使整体流域的轴向速度增大2%,改善了整体流动情况。
In order to further optimize the performance of the traditional low-pressure axial fan,a new fan blade design method combining equal-circulation design and variable-circulation design is proposed,which is the equal-variable circulation design.The performance parameters of the equal-variable circulation forward-swept blade were tested experimentally,and the performance and inflow characteristics of the blade designed by the method were verified by numerical simulation.The numerical results show that the design method of equal-variable circulation is more effective for improving the aerodynamic performance of the forward-swept blades.The total pressure of the forward swept blades under design conditions can be increased by 4%.The design of the equal-variable circulation increases the axial velocity of the flow field by 2%,which improves the flow condition.

关键词(KeyWords)： 轴流风机;等-变环量;数值模拟;性能研究
axial fan;equal-variable circulation;numerical simulation;performance study

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51776217)

作者(Authors): 王思杰;梁迪;闫乐;李意民;冯非凡;周忠宁;孙子钦;
Wang Sijie;Liang Di;Yan Le;Li Yimin;Feng Feifan;Zhou Zhongning;Sun Ziqin;China University of Mining and Technology;

参考文献(References)：

• [1]陈坤,刘庆平,廖庚华,等.利用雕鸮羽毛的消音特性降低小型轴流风机的气动噪声[J].吉林大学学报(工学版),2012,159(1):79-84.
• [2]王仲奇,郑严.叶轮机械弯扭叶片的研究现状及发展趋势[J].中国工程科学,2000,2(6):40-48.
• [3]陈浮,赵桂杰,宋彦萍,等.叶片弯、掠对压气机端壁流动的影响[J].工程热物理学报,2004,25(2):211-215.
• [4]Ramakrishna P V,Govardhan M.Stall characteristics and tip clearance effects in forward swept axial compressor rotors[J].Journal of Thermal Science,2009,18(1):40-47.
• [5]Vad J,Kwedikha A R A,Cs Horváth,et al.Aerodynamic effects of forward blade skew in axial flow rotors of controlled vortex design[J].Proceedings of the Institution of Mechanical Engineers Part A Journal of Power & Energy,2007,221(7):1011-1023.
• [6]Benini E,Biollo R.Aerodynamics of swept and leaned transonic compressor-rotors[J].Applied Energy,2007,84(10):1012-1027.
• [7]Razavi S R,Boroomand M.Numerical and performance analysis of one row transonic rotor with sweep and lean angle[J].Journal of Thermal Science,2014,23(5):438-445.
• [8]Hurault J,Kouidri S,Bakir F,et al.Experimental and numerical study of the sweep effect on three-dimensional flow downstream of axial flow fans[J].Flow Measurement and Instrumentation,2010,21(2):155-165.
• [9]邬振耀,程鹏.轴流风机变环量设计的研究[J].上海交通大学学报,1993(2):56-60.