热能与动力

定常抽吸与非定常脉动抽吸对高负荷压气机叶珊性能的影响

  • 张洪鑫 ,
  • 陈绍文 ,
  • 王松涛 ,
  • 王仲奇
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  • (哈尔滨工业大学 发动机气体动力研究中心,哈尔滨 150001)
张洪鑫(1989—),男,博士生,E-mail:zhanghongxin0404@163.com.

收稿日期: 2018-07-19

  修回日期: 2018-09-05

  网络出版日期: 2018-09-05

基金资助

国家自然科学基金资助项目(51436002).

Influences of steady contant suction and unsteady pulsed suction on performance of  highly loaded compressor cascade

  • ZHANG Hong-xin ,
  • CHEN Shao-wen ,
  • WANG Song-tao ,
  • WANG Zhong-qi
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  •  (Engine Aerodynamics Research Centre, Harbin Institute of Technology, Harbin 150001,China)

Received date: 2018-07-19

  Revised date: 2018-09-05

  Online published: 2018-09-05

Supported by

 

摘要

提出一种新的非定常流动控制技术——非定常脉动抽吸,并将其应用到某高负荷压气机中,以达到控制流动分离的目的.在时均抽吸量ms= 0.4%和ms=0.53 %时,相比定常抽吸,在一个给定的激励频率范围内,非定常脉动抽吸在降低总压损失系数方面均显示出很大的优势,且分别存在一个最佳的激励频率,使得总压损失减小分别达9.4 %和14.2 %.在相同时均抽吸量下,非定常脉动抽吸控制流动分离的效果明显优于定常抽吸,其中,在时均抽吸量 ms= 0.29 %时,非定常脉动抽吸相比定常抽吸损失减小了11.6 %.

本文引用格式

张洪鑫 , 陈绍文 , 王松涛 , 王仲奇 . 定常抽吸与非定常脉动抽吸对高负荷压气机叶珊性能的影响[J]. 大连海事大学学报, 2018 , 44(4) : 92 -98 . DOI: 10.16411/j.cnki.issn1006-7736.2018.04.014

Abstract

Unsteady pulsed suction (UPS) as a new unsteady flow control technology was proposed and used in a highly loaded compressor cascade to control flow separation. Comparing with steady constant suction (SCS), UPS shows great advantages in reducing the total pressure loss coefficient in a given excitation frequency range with the time-averaged suction flow rate ms=0.4 % and ms=0.53 %, and there is an optimal excitation frequency respectively, resulting in a decrease in total pressure loss of 9.4 % and 14.2 % respectively. The effect of UPS on control flow separation is better than that of SCS with the same timeaveraged suction flow rate, and when the time-averaged suction flow rate ms= 0.29 %, the loss for UPS is reduced by 11.6 % compared to SCS.

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