... and the diffuser and high density of the working fluid involved in a radial pump ( 1 2 3 ). In addition, there is the unsteady effect due to stochastic turbulent fluctuations, denoted here as the “turbulence effect.” computational fluid dynamics Doppler measurement laser velocimetry Navier-Stokes...

... was equipped with fast response pressure transducers to record the instantaneous surface pressure for 20 different clocking positions at midspan. 08 06 2007 20 06 2007 07 05 2008 blades Doppler measurement flow instability laser velocimetry Navier-Stokes equations pressure...

... layers vortices flow measurement Doppler measurement laser velocimetry In recent years the growing necessity of increasing specific output power of turbochargers and turboshaft engines has encouraged the design of high-pressure ratio, large capacity centrifugal compressors. Two-stage...

... for the last survey station. These data will form a challenging test case for numerical code validation. 01 10 2001 01 03 2002 14 01 2008 flow separation wakes vortices boundary layer turbulence blades stators turbomachinery Doppler measurement laser velocimetry The trend...

... and quarter-pitch 13 07 2006 02 08 2006 gas turbines engines wind tunnels Doppler measurement laser velocimetry coolants cooling effusion Component cooling technologies play an increasingly important role as the firing temperatures of gas turbine combustors are raised...

... vortices) interact intensively inside the rotor passage. 13 07 2006 18 07 2006 flow instability turbines rotors laser velocimetry Doppler measurement turbulence nozzles wakes vortices boundary layers flow measurement Low Reynolds number flows have become increasingly...

... transonic flow aerodynamics Doppler measurement laser velocimetry turbulence gas turbines To meet the objective of reduced costs and more compactness of turbomachinery, it is advantageous to reduce the number of stages resulting in high-pressure (HP) ratios and transonic conditions...

... 01 March 2004 09 02 2005 rotational flow confined flow laser velocimetry flow separation flow simulation flow measurement velocity measurement rotors stators There has been steady progress in the field of turbomachinery flow computations during the past decade...

... vortices wakes transonic flow gas turbines blades Doppler measurement laser velocimetry nozzles rotors stators boundary layers The unsteady flow in turbomachines is characterized by the interaction between stationary and rotating blade rows and their wakes. The wake flow moves downstream...

..., 2003. Manuscript received by the IGTI December 2002; final revision March 2003. Paper No. 2003-GT-38266. Review Chair: H. R. Simmons. 16 June 2003 01 December 2002 01 March 2003 15 06 2004 transonic flow stators rotors gas turbines shear turbulence laser velocimetry...

... dynamic investigations. The reason is partly that measuring fluid flow in a rotating coolant duct is a challenging. computational fluid dynamics velocity measurement pipe flow laser velocimetry Doppler measurement flow measurement vortices convection 16 June 2003 01 Dec 2002...

... blades Doppler measurement laser velocimetry computational fluid dynamics heat transfer friction Augmented internal cooling for metal blades of a gas turbine engine is the main theme of the present study. In existing turbine blade designs staggered and skewed ribs are more commonly arranged...

... dynamics transonic flow Mach number compressors turbines laser velocimetry Doppler measurement The use of large capacity and high pressure ratio is strongly required for the centrifugal compressor applied to turbochargers and turboshaft engines because of the recent trend of increased...

... received by the IGTI, October 26, 2001. Paper No. 2002-GT-30382. Review Chair: E. Benvenuti. 03 June 2002 26 October 2001 23 01 2003 compressors confined flow computational fluid dynamics flow instability wakes flow measurement laser velocimetry Trying to attain...

... visualisation laser velocimetry heat transfer For the design of cooled gas turbine blades, a detailed knowledge of the physical phenomena in the passage is necessary. Although CFD simulations can provide a better understanding of these phenomena, the numerical heat transfer predictions are not yet...

... 2001 gas turbines transonic flow compressors stators laser velocimetry subsonic flow vortices To predict blade row interaction phenomena, design system unsteady aerodynamic analyses generally consider the response of an isolated blade row, with both linearized frequency domain...

... surrounding the development of stall precursors, stall cell propagation, and eventually compressor surge. compressors centrifuges laser velocimetry flow control rotational flow pressure measurement 01 January 2000 Contributed by the International Gas Turbine Institute...