.... blades coolants cooling film flow nozzles pressure thermodynamics turbulence 20 09 2010 17 10 2010 20 07 2011 20 07 2011 2012 American Society of Mechanical Engineers ...

... over the pulsing duration is very small, suggesting a large thermal inertia that keeps the wall surface largely unaffected by the time scale of the pulsations; this holds true for both blowing ratios tested. 02 08 2010 10 08 2010 19 07 2011 19 07 2011 cooling film flow...

.... 225 – 232 . 10.1115/1.2841305 07 12 2009 31 05 2010 28 02 2011 28 02 2011 blades design engineering film flow flow measurement heat transfer infrared imaging turbines velocimeters Film cooling of gas turbine stator and rotor airfoil surfaces has played...

... of the vane. Spatially averaged adiabatic effectiveness for discrete slots with varying width 02 10 2009 18 01 2010 29 11 2010 29 11 2010 cooling film flow heat measurement turbines In order to increase both thermal efficiency and power output, modern day gas...

... are sufficiently cooled while the use of compressor air is minimized to achieve optimum cycle efficiencies. deposition roughness film cooling blades cooling film flow turbines turbulence 27 07 2009 21 08 2009 11 11 2010 11 11 2010 Borom , M. P. , Johnson...

... 12 2008 26 01 2009 09 09 2010 09 09 2010 ash blades coolants erosion film flow flow simulation particle size turbines A severe operating environment and residual foulants in fuels derived from alternative sources, such as coal and biomass, necessitates taking...

... of the standard tip, and all modifications contributed significantly to the area affected by the hot tip leakage flow and the total heat flux. blades film flow flow simulation gas turbines heat transfer rotors turbulence A review of research quantifying the losses and heat transfer associated...

... effectiveness for B = 1.0 cases at various Sr; ( a ) centerline and ( b ) spanwise averaged 06 06 2007 22 06 2007 31 07 2008 anemometry cooling film flow jets plates (structures) temperature measurement thermocouples turbines velocity measurement wakes wheels...

... vortices jets film flow gas turbines cooling aerodynamics vortices 28 07 2006 08 08 2006 2007 American Society of Mechanical Engineers ...

... the exact physical mechanisms are still being defined, there are very clear advantages to the use of pulsed flows and their associated starting vortices for control of wall flows, turbine film cooling flows, and many other flows. The possibility of reducing the duty cycle and actual film flow rate...

... appear to be available in the literature for other geometries. film flow cooling flow measurement anemometry jets 19 12 2005 16 01 2006 2006 American Society of Mechanical Engineers ...

...: Heat Transfer ,” ASME J. Turbomach. 0889-504X , 118 , No. 4 , pp. 800 – 806 . Rutledge , J. L. , 2004 , “ Suction Side Roughness Effects on Film Cooling Heat Transfer on a Turbine Vane ,” M. S. thesis, University of Texas at Austin. 01 10 2004 01 02 2005 film...

... boundary layer turbulence cooling film flow Mach number supersonic flow gas turbines heat transfer 2 Film-cooling test section (modules for heat transfer tests) All tests are carried out using ejection modules with seven film-cooling holes in a row. Two types of holes are investigated...

... temperature distribution gas turbines film flow cooling boundary layer turbulence Nonuniform temperature profiles, or “hot streaks” exiting the combustor in a gas turbine engine play a large role in failures of the first stage nozzle guide vanes and rotor blades due to thermal loading. Since...

...-GT-30520. Review Chair: E. Benvenuti. 03 June 2002 10 October 2001 23 04 2003 turbines aerodynamics cooling film flow flow simulation stagnation flow Navier-Stokes equations To achieve high cycle efficiency in modern gas turbine engines, the temperature...

... received by the IGTI, November 21, 2001. Paper No. 2002-GT-30176. Review Chair: E. Benvenuti. gas turbines cooling heat transfer turbulence film flow infrared detectors temperature measurement In modern gas turbines sophisticated cooling schemes including film cooling are widely used...

... due to showerhead injection. Measurement of these thermal and velocity fields gives insight into how the showerhead blowing affects downstream film cooling performance. gas turbines heat transfer cooling film flow flow visualisation velocity measurement turbulence jets 03 June...

... of the downstream effectiveness effects by means of the laterally averaged results confirm the characteristic impact from two different cooling film flow patterns on the downstream effectiveness distribution. These two different flow patterns are the single jet in crossflow mixing and the adjacent jet interaction...

... and Exhibition, Amsterdam, The Netherlands, June 3–6, 2002. Manuscript received by the IGTI, November 2, 2001. Paper No. 2002-GT-30175. Review Chair: E. Benvenuti. 03 June 2002 02 November 2001 07 11 2002 gas turbines heat transfer film flow flow visualisation laser Doppler...

... 2002 29 October 2001 07 11 2002 gas turbines cooling heat transfer film flow flow measurement jets temperature measurement The lateral mean heat transfer coefficients on a film-cooled wall are the essential entity for the prediction of the wall heat flux and, subsequently...