... large eddy simulation discontinuous Galerkin spectral element method transonic flow shock capturing computational fluid dynamics (CFD) fluid dynamics and heat transfer phenomena in compressor and turbine components of gas turbine engines With the increasing demand for more efficient turbo...

...Haiteng Ma; Wei Zeng; Siming Dai; Hongmei Jiang Film cooling, as a key technology to ensure turbine survival in new generation gas turbines, has been studied profusely in subsonic flows. But in transonic flow, the determination of adiabatic cooling effectiveness faces a dilemma in the state...

... explained. 02 11 2010 12 09 2010 25 07 2011 25 07 2011 blades flow instability heat transfer Navier-Stokes equations rotors subsonic flow transonic flow turbines turbulence The efficiency of a jet engine is linked to the turbine inlet temperature...

..., no longer uniform or free of disturbances, and is now carrying with it a boundary layer developing along the fuselage; the inlet is thus known as boundary-layer-ingesting (BLI) inlet. aerospace components aircraft boundary layer turbulence flow control Navier-Stokes equations transonic flow...

... techniques. 30 06 2010 01 07 2010 15 07 2011 15 07 2011 aerodynamics cooling engines mass transfer transonic flow turbines Cooling plays a critical role in turbine aerodynamics, heat-transfer, life-durability, and efficiency. However, cooling designs have been...

... blades cooling design engineering hydraulic turbines mass transfer transonic flow valves 30 06 2010 01 07 2010 15 07 2011 15 07 2011 2012 American Society of Mechanical Engineers ...

... 06 2011 28 06 2011 aerodynamics blades boundary layers computational fluid dynamics engines gas turbines nozzles transonic flow wakes The performance of the turbine section in a gas turbine engine plays a major role in the overall efficiency of the engine. They depend...

... 22 07 2010 27 04 2011 27 04 2011 blades computational fluid dynamics heat transfer Mach number shock waves transonic flow The tip of an unshrouded turbine rotor blade is one of the most vulnerable areas on turbine blade due to its high thermal load and difficulty...

... turbulence bubbles computational fluid dynamics cooling heat transfer Mach number transonic flow turbines The design of high-pressure (HP) turbine blade tips has a significant impact on both the aerodynamic loss and the heat load of unshrouded turbine blades. For these reasons, there has been...

... of rotation helps pressurize the cavity and is responsible for preventing hot gas from entering the buffer cavity. 11 08 2009 21 11 2009 25 04 2011 25 04 2011 computational fluid dynamics coolants cooling flow simulation rotors stators transonic flow turbines wheels...

...Q. Zhang; D. O. O’Dowd; L. He; A. P. S. Wheeler; P. M. Ligrani; B. C. Y. Cheong In this paper, the transonic flow pattern and its influence on heat transfer on a high-pressure turbine blade tip are investigated using experimental and computational methods. Spatially resolved heat transfer data...

... attention was given to the predictions of rotor blade unsteady pressure and heat transfer rates. 29 12 2009 12 01 2010 28 02 2011 28 02 2011 blades computational fluid dynamics design engineering gas turbines heat transfer rotors stators transonic flow turbulence...

... transonic flow turbogenerators vortices wakes One dimensional comparison of efficiency difference between far and close Efficiency difference (far-close)(%) Experiment 0.445 Turbo 1.008 APNASA 0.461 Figure 9 shows the profile of the efficiency difference between...

... transonic flow turbines Shape design optimization in aerodynamics is an approach to obtain the geometric shape following the given criteria of aerodynamic performance with both geometric and aerodynamic restrictions. There are various methods for shape optimization in turbomachinery, including...

... simulations are required to analyze the complex blade and endwall boundary layer interaction. 05 08 2009 03 09 2009 27 10 2010 27 10 2010 aerodynamics blades compressors flow simulation Navier-Stokes equations transonic flow vortices wind tunnels An improvement...

... flow instability rotors transonic flow More and more attentions have been paid on casing treatment since Koch and Smith ( 1 ) found that it could be used to expand the stable operating range of compressor. Investigations on casing treatment are divided into two parts: one is the attempts...

.... , 2007 , “ Multibladerow Forced Response Modeling in Axial-Flow Core Compressors ,” ASME J. Turbomach. 0889-504X , 129 , pp. 412 – 420 . 10.1115/1.2436892 Erdos , J. I. , and Alzner , E. , 1977 , “ Numerical Solution of Periodic Transonic Flow Through a Fan Stage ,” AIAA J. 0001...

... calculations are presented to give estimates of the magnitude and nature of this phenomenon. 20 07 2009 20 08 2009 21 10 2010 21 10 2010 blades compressors flow instability rotors stagnation flow transonic flow vortices wakes The design of highly loaded, high Mach...

... component if not cooled properly. blades gas turbines heat transfer Mach number transonic flow turbulence 03 01 2008 29 01 2010 28 09 2010 28 09 2010 Zimmermann , D. B. , 1979 , “ Laser Anemometer Measurements at the Exit of a T63-C20 Combustor ,” NASA...

... be achieved, as detailed in Part II of this paper. blades compressors computational fluid dynamics measurement by laser beam rotors transonic flow 27 08 2008 16 09 2008 09 09 2010 09 09 2010 In recent years, research in turbomachinery was especially aimed...