... ournal of T urbomachinery . 27 10 2020 31 03 2021 31 03 2021 21 04 2022 centrifugal compressors stall inception rotating stall diffuser stall flow instability K. C. Wong Education Foundation 10.13039/501100012692 GJTD-2019-09 National Major Science...

... flux and this introduces uncertainty. Tip Stanton number comparison between CFD and experiment 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...

... 2010 31 12 2010 21 07 2011 21 07 2011 compressible flow compressors finite difference methods flow instability Mach number rotational flow singular value decomposition vaneless diffuser rotating stall 3D compressible flow linear inviscid model The radial...

... 2011 15 07 2011 blades boundary layer turbulence bubbles flow instability flow separation laminar flow plates (structures) Although modern gas-turbine engines are highly developed, small improvements in performance can still yield significant economic benefits. Since...

... blade profile. 22 08 2008 26 06 2009 14 07 2011 14 07 2011 blades bubbles flow control flow instability flow separation gas turbines jets wakes With the trend toward higher bypass ratios in turbofans, demands are increasing for the low pressure turbines (LPTs...

... and the jet, which is largely determined by the blowing ratio. 28 06 2010 23 07 2010 28 06 2011 28 06 2011 aerospace engines cooling films flow instability jets turbines Large gains in aero-engine efficiency and turbine specific work have been made possible by raising...

... predicted heat flux and ( b ) predicted adiabatic wall temperature 01 07 2010 04 07 2010 25 05 2011 25 05 2011 aerodynamics blades computational fluid dynamics flow instability flow simulation heat transfer rotors turbines hot-streak OTDF RTDF HP turbine...

... to their potential for reduced environmental impact and their inherent noise challenge. aerospace propulsion aircraft computational fluid dynamics fans flow instability flow simulation jet engines rotors wakes 3D unsteady RANS simulations were carried out using the commercially available...

... separation point and the synthetic jet is just at the separation point. actuators compressors flow control flow instability flow separation jets Navier-Stokes equations In the modern aero-engine design, the tendency toward weight reduction and pressure ratio enhancement leads to stronger...

... the tip. In addition, different components of the average passage body forces (deterministic stresses) are explored that shows the main terms are the axial momentum and the metal blockage. flow instability flow simulation rotors transonic flow turbogenerators vortices wakes Transonic...

... regions, up to 15% higher. The results for the endwall heat transfer were compared with results in open literature and were found to be comparable. 27 08 2009 22 05 2010 15 11 2010 15 11 2010 blades flow instability flow simulation gas turbines heat transfer Navier-Stokes...

... 2009 12 11 2010 12 11 2010 aerodynamics compressors computational fluid dynamics flow instability mechanical engineering computing nozzles turbomachinery In view of recently rising primary energy costs and the demand to reduce the emission of greenhouse gases, new...

... that the unequal admission loss is not as significant in pulsating flow as it is in steady flow. 21 07 2009 13 08 2009 11 11 2010 11 11 2010 compressors flow instability interpolation pulsatile flow turbines Pulse turbocharging is widely used in a variety of internal...

.... aerodynamics blades compressors ducts flow instability mechanical stability 05 08 2009 05 10 2009 11 11 2010 11 11 2010 2011 American Society of Mechanical Engineers ...

... get less predominant. Average film cooling effectiveness as function of the coolant volume flow 20 07 2009 31 07 2009 25 10 2010 25 10 2010 blades cooling engines flow instability flow separation Mach number pressure measurement pulsatile flow...

... at midaxial plane (Fourier solution, reconstructed): Direct solution of ( a ) 14 harmonics and ( b ) 10 harmonics 14 07 2009 04 08 2009 25 10 2010 25 10 2010 cavitation discs (structures) flow instability Fourier analysis heat transfer rotors vortices...

... 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...

... 2010 21 10 2010 blades compressors flow instability rotors stagnation flow transonic flow vortices wakes The design of highly loaded, high Mach number (HLHM) compressors (i.e., compressors with supersonic relative Mach numbers in an embedded stage) presents challenges...

... 20 07 2009 28 07 2009 20 10 2010 20 10 2010 aerodynamics blades compressors flow instability subsonic flow Aircraft jet engines must be capable of operating safely away from their design condition. This requirement places a particular constraint on the design...

... , pp. 279 – 287 . 10.1115/1.3239560 08 07 2009 23 07 2009 23 09 2010 23 09 2010 aerodynamics blades damping design engineering elasticity flow instability Navier-Stokes equations The demand in turbomachine designs for higher aerothermal performance...