首页|Design strategy and relevant flow mechanisms of highly loaded 3D compressor tandem cascades

Design strategy and relevant flow mechanisms of highly loaded 3D compressor tandem cascades

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
To investigate the design strategy of highly loaded tandem cascades at both the midspan and endwall,the overall performance and flow mechanisms of four typical tandem cascades based on the optimization were analyzed from multiple perspectives numerically.The results show that the interference effects on the Front Blade(FB)and Rear Blade(RB)should not be overlooked dur-ing the design phase,and the design strategies at the midspan and endwall are completely different.At the midspan,the optimization aims to increase the interference effects and the strength of the gap jet while maintaining the same load on the FB and RB.However,the endwall optimal airfoil exhibits weakening interference effects,advancement of the gap jet location,and load transfer from the FB to RB.Through further analysis of flow characteristics,the midspan optimal airfoil is ben-eficial for inhibiting the low-energy fluid from interacting with the suction surface of RB under the design condition,but results in earlier occurrence of corner stall.The endwall optimal airfoil helps suppress the development of the secondary flow and delay the onset of corner stall.Furthermore,by combining the benefits of these two design approaches,additional forward sweep effects are achieved,further enhancing the performance of the tandem cascade.

Tandem cascadeInterference effectVortex structureLoad splitCompressor

Xiaochen MAO、Yunyu WANG、Zhihua DING、Hao CHENG、Bo LIU

展开 >

School of Power and Energy,Northwestern Polytechnical University,Xi'an 710129,China

The National Key Laboratory of Science and Technology on Aerodynamic Design and Research,Xi'an 710129,China

Xi'an Thermal Power Research Institute Co.Ltd,Xi'an 710072,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities,ChinaFoundation of State Level Key Laboratory of Airfoil and Cascade Aerodynamics,ChinaFoundation of State Level Key Laboratory of Airfoil and Cascade Aerodynamics,China111 Project,ChinaKey Laboratory of Flow Visualization and Measurement Techniques,A VIC Aerodynamics Research Institute,China

5210605792152301D5000210483D5150210006D5050220008B17037D5110220177

2024

10.1016/j.cja.2024.04.025

中国航空学报(英文版)
中国航空学会

中国航空学报(英文版)

CSTPCDEI
影响因子：0.847
ISSN：1000-9361
年,卷(期)：2024.37(7)
  • 5