... 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...

... and excessive thermal stresses. A number of cooling technologies are in use right now. A comprehensive summary of the various cooling technologies could be found in Han et al. ( 1 ). cooling fans gas turbines plates (structures) 20 01 2010 19 02 2010 26 04 2011 26 04 2011...

...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...

... and R , respectively). friction heat transfer plates (structures) pressure measurement thermocouples The gas turbine industry continually seeks to increase the operating temperature of the engine in order to achieve higher efficiency. Cooling gas turbine vanes and blades to prevent...

... ) . 28 08 2008 04 06 2010 07 09 2010 07 09 2010 coolants cooling gas turbines optimisation plates (structures) Demands for increased power output from gas turbine engines and decreased fuel consumption have caused engine designers to increase combustion exit gas...

... compared with experimental measurements. 09 03 2009 06 05 2009 29 04 2010 29 04 2010 cooling effusion engines finite element analysis flow measurement liquid crystals Mach number Navier-Stokes equations plates (structures) polymers stainless steel turbines turbulence...

... boundary layer turbulence bubbles diffusion flow separation laser Doppler anemometry plates (structures) turbines wakes The flow inside turbomachinery turbine blade passages is inherently unsteady. Each blade row sheds turbulent wakes, which periodically convect through downstream passages...

... opening from both aspects of stall improvement and fan efficiency. 05 09 2008 27 11 2008 12 01 2010 12 01 2010 blades compressors fans plates (structures) rotors turbomachinery fluid machinery fluid mechanics axial-flow fan fan stalling antistall device air...

... to be understood thoroughly and new opportunities exploited where this is feasible.a 08 06 2007 28 06 2007 22 01 2009 aerospace engines blades bubbles compressors confined flow flow separation gas turbines heat transfer jets laminar to turbulent transitions plates (structures...

... flow simulation gas turbines jets plates (structures) temperature measurement wakes Film cooling has been studied extensively to provide improved cooling of the airfoils in gas turbine engines and thus increase their life and allow for higher turbine inlet temperatures. Approximately 20–25...

... and Strouhal numbers. More comparisons are presented below. The good time averaged agreement provides confidence to proceed with study of the phase averaged η * results. 06 06 2007 22 06 2007 31 07 2008 anemometry cooling film flow jets plates (structures) temperature...

... equation is set to be a level of 10 − 7 . 26 07 2004 09 05 2007 24 06 2008 cooling effusion gas turbines jets mass transfer plates (structures) vortices The thermal efficiency and the specific power of the gas turbine systems depend strongly...

... 12 2007 gas turbines blades heat transfer jets channel flow plates (structures) vortices An effective cooling scheme of gas turbine vanes is important because it can improve the gas turbine performance and prolong the lifetime of the materials. Jet impingement is one of the most...

... barrier coating (TBC). Permeabilities of the different designs are presented in detail for the TBC layer. The influence of the plate curvature and the blowing ratio on the effective orthotropic thermal conductivities is finally outlined. 19 07 2006 05 09 2006 numerical analysis plates...

... observations. The current work therefore provides a basis for the modeling of transition on concave surfaces. 13 07 2006 18 08 2006 plates (structures) vortices boundary layers laminar flow blades friction laminar to turbulent transitions gas turbines Traditional transition...

... Coefficient ,” ASME Paper No. GT-2002-30173. jets cooling plates (structures) gas turbines vortices valves engines Film cooling has been studied extensively in order to provide improved cooling of the airfoils in gas turbine engines and thus increase the life of the airfoils and allow...

...G. Wagner; M. Kottula; P. Ott; B. Weigand; J. von Wolfersdorf liquid crystals plates (structures) turbomachinery The definitions of the symbols of Figs. 4 5 6 7 8 9 10 were missing: Effect of surface curvature using comparison between Eqs. (1) and (21) Deviation...

... holes enhances inward radial flow in front plate relief promoting blow-down. Flow entering through holes locally separates into inward and outward directions, resulting in fluctuations in radial velocity as seen in Fig. 16b . 14 01 2005 15 07 2005 seals (stoppers) fibres plates...

.... , 2006 , “ Effects of Geometry on Brush Seal Pressure and Flow Fields: I. Front Plate Configurations ,” ASME J. Turbomach. 0889-504X , 128 , pp. 367 – 378 . seals (stoppers) plates (structures) computational fluid dynamics design engineering geometry turbomachinery The brush...