...-pressure turbine linear cascade secondary flows transonic low-Reynolds number measurement techniques turbine blade and measurement advancements Cleansky 10.13039/501100000922 820883 The ultra-high by-pass geared turbofan (GTF) is a key-enabler engine architecture to comply...

... and achieve long-term durability goals. In an effort to minimize the penalty associated with bleeding air from the compressor section, much research has been centered around understanding endwall aerodynamics and optimizing cooling scheme design. nozzle guide vane transonic density ratio heat...

..., the effect of the combustor-turbine misalignment on the heat transfer for an axisymmetric converging endwall with a jet purge cooling scheme at transonic conditions. The studies were conducted at engine-representative Ma exit = 0.85, inlet turbulence intensity of 16%, and Re exit,Cax = 1.5 × 10 6 . A film...

...Marcel Börner; Reinhard Niehuis The results presented in this paper are based on experimental investigations on a generic transonic low pressure turbine profile at high subsonic exit Mach numbers. Here, the flow on the suction side reaches a maximum isentropic Mach number of approximately 1.2...

... annular sector cascade facility in a blowdown wind tunnel. The controlled exit isentropic Mach numbers were 0.7, 0.9, and 1.0, from high subsonic to transonic conditions. The freestream turbulence intensity is estimated to be 12%. Three coolant-to-mainstream mass flow ratios (MFR) in the range 0.75%, 1.0...

... − 10 deg to + 14.5 deg relative to design incidence. 05 04 2008 21 04 2008 10 04 2009 aerodynamics blades gas turbines turbomachinery MISES boundary layer method 2D cascade validation transonic off-design HPT incidence loss CFD Customers who purchase gas...

...D. Corriveau; S. A. Sjolander Linear cascade measurements for the aerodynamic performance of a family of three transonic, high-pressure (HP) turbine blades have been presented previously by the authors. The airfoils were designed for the same inlet and outlet velocity triangles but varied...

...Keith M. Boyer, Assistant Professor, Mem. ASME,; Walter F. O’Brien, J. Bernard Jones Professor and Head, Fellow ASME, A streamline curvature throughflow numerical approach is assessed and modified to better approximate the flow fields of transonic axial compression systems. Improvements in total...