Affection of Asymmetric IGV Circumferential Distribution on the Rotor in A Low Speed Axial Compressor
Theasymmetric Inlet guide vane (IGV) can increase the aerodynamic performance of the low speed axial compressor. Different circumferential distribution of IGV makes different effect. In this paper,a two-dimensional intermittent synthetic jet computational model based on unsteady cooperative flow (UCF) is made to explain this phenomenon. The result of computation indicate that the length of time between the jets is the key of the loss of flow. There must be a proper number of divisions for a asymmetric IGV. The result show that the angle of area without IGV Associated with the loss of the rotor. The asymmetric IGV make the downstream rotor different in dynamic response. An arbitrary circumferentially distributed IGV resonance model based on Fourier transform is built for the asymmetric IGV application in engineering. The result shows that the Campbell diagram of asymmetric IGV is quite different from the symmetric. There is three more frequency should be considered.
synthetic jet axial compressor asymmetric IGV circumferential distribution resonance
Yan Jiachao Yuan Wei Zhou Sheng
National Key Laboratory on Aero-Engines, School of jet propulsion, BUAA, Beijing 100191, China National Key Laboratory on Aero-Engines, School of jet propulsion,BUAA,Beijing 100191, China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
1010-1014
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）