A5023240060- Turbomachinery Performance and Optimization
- Fluid Dynamics and Turbulent Flows
- Heat Transfer Mechanisms
- Aerodynamics and Fluid Dynamics Research
- Combustion and flame dynamics
- Aerodynamics and Acoustics in Jet Flows
Beihang University
2017-2022
In order to protect the vulnerable turbine components from extreme high temperature, coolant flow is introduced compressor disk cavity, inevitably interacting with main flow. This paper describes an experimental investigation of interaction between and purge in a low-speed cascade three rates, Cm = 0, 1%, 2%. study effect on secondary flows, Rortex method developed by Liu Chaoquan identify vortex field. meantime, calculate mean entropy production rate based particle image velocimetry (PIV)...
Demand for high reliability and long life of modern turbine requires that components should be cooled adequately. The cooling flow purged into the rotor-stator disk cavity will inevitably interact with mainstream. current paper mainly focuses on aerodynamic influence secondary flows in Both particle image velocimetry blade wall pressure measurement were utilized to study field within passage under different mainstream incidence angles purge rates. was found promote development vortex by...
Abstract The alteration of altitude will affect the stability centrifugal compressors. In this paper, pressure field on casing wall a high-speed compressor at two different altitudes (h = 0m and h 4500m) was investigated by using 15 high-response sensors. operating condition ranged from choke to developed stall condition. results show that interaction shock wave splitter-blade tip leakage flow occurs 70% chord region near condition, loss is more severe high altitudes. At near-stall unstable...