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Separation control using synthetic vortex generator jets in axial compressor cascade
  • ISSN号:0567-7718
  • 期刊名称:《力学学报:英文版》
  • 时间:0
  • 分类:TH453[机械工程—机械制造及自动化]
  • 作者机构:[1]National Key Laboratory of Aircraft Engine, Beihang University, Beijing 100083, China, [2]Chinese Gas Turbine Establishment, Jiangyou,Sichuan 621700, China
  • 相关基金:The project supported by the National Natural Science Foundation of China (10477002 and 50476003) and the Ph.D. Innovative Foundation of Beihang University. The English text was polished by Yunming Chen. Acknowledgments The authors are deeply grateful to Jian Cui, Yang Gu, Zhiwei Liu, Shenghong Peng, Hui Wang, Jian Yang, Hong Li, and the entire 301SB crew at the China Gas Turbine Establishment for their efforts to make this experiment possible. The author Xinqian Zheng would also like to thank Prof. Yajun Lu, Qiushi Li, Wei Yuan and Liyun Ren for their great support. In addition, this works are greatly supported by National Key Laboratory of Diesel Engine Turbochargering Technology.
中文摘要:

在一条高速度的飞机串联风隧道进行的试验性的调查由使用表明那不稳定的流动控制合成(零集体流动) 旋涡生成器喷气能有效地改进空气动力学的表演和还原剂(或消除) 在轴的压缩机串联的流动分离。到来的流动的马赫数字直到 0.7,大多数测试用例在妈 = 0.3。发生是界面层与 70% 弦长度在被分开的 10 °。刺激频率,振幅,地点和沥青角度的角色被调查。初步的结果证明刺激振幅起一个很重要的作用,最佳的刺激地点只分离点是在上游的,并且最佳的沥青角度是 35 °。损失系数的最大的相对减小是 22.8% 。

英文摘要:

An experimental investigation conducted in a high-speed plane cascade wind tunnel demonstrates that unsteady flow control by using synthetic (zero mass flux) vortex generator jets can effectively improve the aerodynamic performances and reduce (or eliminate) flow separation in axial compressor cascade. The Mach number of the incoming flow is up to 0.7 and most tested cases are at Ma = 0.3. The incidence is 10° at which the boundary layer is separated from 70% of the chord length. The roles of excitation frequency, amplitude, location and pitch angle are investigated. Preliminary results show that the excitation amplitude plays a very important role, the optimal excitation location is just upstream of the separation point, and the optimal pitch angle is 35°. The maximum relative reduction of loss coefficient is 22.8%.

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期刊信息
  • 《力学学报:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国力学学会 中国科学院力学研究所
  • 主编:卢天健
  • 地址:北京市海淀区北四环西路15号
  • 邮编:100190
  • 邮箱:actams@cstam.org.cn
  • 电话:010-62536271
  • 国际标准刊号:ISSN:0567-7718
  • 国内统一刊号:ISSN:11-2063/O3
  • 邮发代号:2-703
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:352