Experimental investigation on unsteady pressure fluctuation of rotor tip region in high pressure stage of a vaneless counter-rotating turbine |
| |
Authors: | QingJun Zhao XiYang Liu HuiShe Wang XiaoLu Zhao JianZhong Xu |
| |
Affiliation: | (1) Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, 100190, China |
| |
Abstract: | An experimental investigation has been performed to study the unsteady pressure fluctuation of rotor tip region in high pressure stage of a vaneless counter-rotating turbine. The experiment is carried out on a blow-down short duration turbine facility. The investigation indicates that the blow-down short duration turbine facility is capable of substituting continuous turbine facilities in most turbine testing. Through this experimental investigation, a distinct blade-to-blade variation is observed. The results indicate that the combined effects of vane wake, tip leakage flow, complicated wave systems and rotor wake induce the remarkable blade-to-blade variations. The results also show that the unsteady effect is intensified along the flow direction. Supported by the Award Fund of the President of CAS |
| |
Keywords: | counter-rotating turbine pressure fluctuation unsteady effect short duration experiment |
本文献已被 CNKI SpringerLink 等数据库收录! |