Abstract
The aerodynamic flow field downstream of a Low-Pressure High-Lift (HL) turbine cascade has been experimentally investigated for different Reynolds numbers under both steady and unsteady inflows, in order to analyse the cascade performance under real engine operating conditions. The Reynolds number has been varied in the range 100000<Re<300000, where lower and upper limits are typical of cruise and take-off/landing conditions, respectively. The effects induced by the incoming wakes at the reduced frequency f +=0.62 on both profile and secondary flow losses have been investigated. Total pressure, velocity and secondary kinetic energy distributions at the downstream tangential plane have been measured by means of a miniaturized 5-hole probe. These quantities provide information on both blade wake and secondary flow structures (passage and horse-shoe vortices). The analysis of the results allows the evaluation of the aerodynamic performance of the HL front-loaded blade in terms of both profile and secondary losses.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
