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Endwall aerodynamic losses from turbine components within gas turbine engines 被引量:4
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作者 Phil Ligrani Geoffrey Potts arshia fatemi 《Propulsion and Power Research》 SCIE 2017年第1期1-14,共14页
A survey of research on aerodynamic loss investigations for turbine components of gas tuibine engines is presented.Experimental and numerically predicted results are presented from investigations undertaken over the p... A survey of research on aerodynamic loss investigations for turbine components of gas tuibine engines is presented.Experimental and numerically predicted results are presented from investigations undertaken over the past 65 plus years.Of particular interest are losses from the development of secondary flows from airfoil/endwall interactions.The most important of the airfoilAmdwall secondary flows are passage vortices,counter voitices,and corner vortices.The structure and development of these secondaiy flows are described as they affect aerodynamic perfonnance within and downstream of turbine passage flows in compressible,high speed flows with either subsonic or transonic Mach number distributions,as well as within low-speed,incompressible flows.Also discussed are methods of endwall contouring,and its consequences in regard to airfoil/endwall secondary flows. 展开更多
关键词 Aerodynamic losses Gas turbine engines Turbine components Airfoil/endwall interactions Secondary flows VORTICITY Endwall contouring
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