... downward thrust on the blade. Some aspects still remain to be investigated: First of all, numerical analysis need to be extended in order to examine the effect of constructing the blade profile using inclined (normal to leading edge) airfoil sections, which could achieve better performance, due...

.... cooling gas turbines heat transfer jets numerical analysis turbulence vortices film cooling waist-shaped slot hole converging slot hole transient liquid crystal measurement numerical simulation Many studies show that employing shaped holes is an effective way to improve the film...

... 2011 20 04 2011 aerodynamics cooling gas turbines jets numerical analysis turbulence Various methods have been developed over the years to keep turbine airfoil temperatures below critical levels. The main objective in turbine airfoil cooling is usually to achieve maximum heat...

... but also with the gap distance between the stator and rotor rows. Similarly, in the recent years several authors such as Lampart et al. ( 4 ) and Sakai et al. ( 5 ) have conducted numerical analysis to investigate the effect of shape parameters on the performance of partial admission turbines...

... dynamics numerical analysis wet compression two-phase flow numerical simulation separated flow A two-way coupling is accomplished by alternately solving the dispersed and continuous phase equations to obtain a reasonable convergent solution of the compressor flow field. While...

...Gottfried Laschet 21 01 2008 28 01 2008 28 02 2011 28 02 2011 cooling heat treatment numerical analysis plates (structures) transpiration velocity measurement In Figs. 7 8 of the published article the velocity profiles, induced by a negative unit pressure...

.... This is especially true if we are aiming to identify the spatial modes associated with the bar/airfoil interaction. 29 07 2008 13 02 2009 09 09 2010 09 09 2010 aerodynamics blades numerical analysis turbomachinery vortices Matching experimental data and analytical results...

... aerospace engines aerospace propulsion blades computational fluid dynamics distortion fans Navier-Stokes equations numerical analysis pressure measurement temperature measurement Current design methodology and modeling techniques for distortion in the aviation and engine industry...

... unchanged. The total temperature distortion generally grows as flow passes through the fan stages. 09 09 2008 28 01 2009 06 05 2010 06 05 2010 computational fluid dynamics fans numerical analysis Unsteady Reynolds-Averaged Navier-Stokes (RANS) calculations were...

...: Experiment and Analysis ,” ASME J. Turbomach. 0889-504X , 107 ( 2 ), pp. 436 – 449 . 19 09 2007 03 12 2007 05 05 2010 05 05 2010 blades centrifuges compressors flow measurement impellers multiphase flow Navier-Stokes equations numerical analysis subsonic flow...

.... This lack of commercial use is the motivation for the current study. gas turbine tandem blade compressor rotor computational aerospace components aerospace engines blades compressors gas turbines numerical analysis rotors 29 09 2008 28 01 2009 25 03 2010 25 03...

... drag fans flow simulation jet engines Mach number mass transfer nozzles numerical analysis rotors 1 An important consideration in the design of nacelles for commercial aircraft engines is the propulsion system drag at engine-out “windmill” conditions, where the fan rotor...

.... blades fans flow instability fluid oscillations numerical analysis pattern formation rotors shock waves transonic flow turbulence vortices As indicated in Fig. 5 , there is a threshold value of mass flow rate for the onset of tip leakage flow unsteadiness for tip clearances of 1.1...

... 12 01 2010 12 01 2010 computational fluid dynamics numerical analysis quadratic programming turbines Endwall losses in turbines contribute significantly to the overall losses, especially when cost and weight reasons induce the reduction in stage number and airfoil count...

... blades heat transfer numerical analysis rotors stators transonic flow turbines turbomachinery Ensuring an adequate blade life at the temperatures reached in today’s advanced engines requires efficient cooling methods. In high-pressure turbine stages, cold air is ejected from the cavity...

... effectiveness and the associated heat transfer coefficients have been reported. 01 04 2008 20 11 2008 30 06 2009 blades cooling gas turbines numerical analysis rotors turbulence The inlet temperature of a modern gas turbine has continually increased to achieve high thrust...

... simulation heat transfer numerical analysis unsteady flow hot streak three dimensional numerical simulation gas turbine The inlet temperature field of gas turbine is usually nonuniform or distorted, as the combustor exit flow has both the circumferential and radial temperature gradients...

...A. T. Simpson; S. W. T. Spence; J. K. Watterson This paper details the numerical analysis of different vaned and vaneless radial inflow turbine stators. Selected results are presented from a test program carried out to determine performance differences between the radial turbines with vaned stators...

..., which is most appropriate for flow measurements. The design procedures necessary to achieve a desired flow condition are discussed. 09 12 2006 26 07 2008 02 04 2009 blades flow simulation heat conduction numerical analysis pipe flow turbines Large-scale efforts...

... over rough surfaces is a major shortcoming of the widely used computational fluid dynamics (CFD) codes ( 1 ). blades drag gas turbines heat transfer numerical analysis random processes rough surfaces two-phase flow 28 08 2007 22 10 2007 03 02 2009 2009 American...