...Haiteng Ma; Yisu Liu; Youkui Lai; Hua Ouyang; Jia Ning; Xianwang Jiang; Qin Xu As a key technology to ensure turbine survival, blade cooling encompasses a whole range of strategies with ever-increasing geometric complexities. Flow measurement for turbine blades with such intricate internal...

... models. 29 06 2010 24 09 2010 14 07 2011 14 07 2011 cooling flow measurement heat transfer pipe flow turbomachinery turbulence vortices turbine blade cooling two-pass system ribs bend U-turn flow turning dean vortex separation rotation flow measurement...

...., see Ref. 4 ). Such studies have primarily concerned themselves with surface heat transfer information rather than the flow structure per se for different geometries and flow conditions. blades design engineering film flow flow measurement heat transfer infrared imaging turbines...

... casing, it is not clear how accurately the flow phenomena induced by the casing treatment, interacting with the rotor tip, and responsible for the gain in stall margin can be simulated. blades compressors flow measurement rotors transonic flow 27 08 2008 16 09 2008 09 09...

... flow measurements within the diffuser are available for comparison purposes. C p static pressure rise coefficient ( C p = ( p − p 3 ) ( p t 3 − p 3 ) ) m ̇ mass flow PS pressure surface p pressure r...

... 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...

... in secondary flow features as were previously observed experimentally, with associated changes in heat transfer with the blade tip. 02 03 2009 16 03 2009 07 04 2010 07 04 2010 blades design engineering engines flow measurement flow simulation gas turbines heat transfer...

... solver, CEDRE . 06 08 2008 09 02 2009 16 09 2009 aerodynamics finite volume methods flow measurement flow visualisation jets Navier-Stokes equations velocity measurement State-of-the-art gas turbine engines are designed to operate at turbine inlet temperatures over...

... bubbles flow measurement flow separation turbines wind tunnels Boundary layer separation can lead to partial loss of lift and higher aerodynamic losses on low-pressure turbine (LPT) airfoils (e.g., Refs. 1 2 3 ). As designers impose higher loading to improve efficiency and lower cost...

... 2008 06 07 2009 aerodynamics aerospace components blades boundary layer turbulence bubbles compressors computational fluid dynamics flow measurement flow separation laminar flow pressure measurement stators wakes 2007 IGTI Best Technical Paper The leading-edge...

... configuration as more of the coolant stayed attached to the endwall surface with the trench. 19 08 2008 27 08 2008 01 07 2009 blades boundary layer turbulence combustion equipment cooling flow measurement gas turbines jets liquid films stators vortices An endwall near...

... of a Separating Boundary Layer With Steady Vortex Generating Jets—Detailed Flow Measurements ,” presented at the AIAA Aerospace Sciences Meeting, Reno, NV, Jan. 5–8. Hansen , L. C. , and Bons , J. P. , 2006 , “ Phase-Locked Flow Measurements of Pulsed Vortex-Generator Jets in a Separating Boundary...

... and Flow Measurement of Siemens-Westinghouse HP-Turbine Blades ,” Series 9600 and 5600, Final Report, Westinghouse. Schobeiri , M. T. , Gilarranz , J. L. , and Johansen , E. S. , 2000 , “ Aerodynamic and Performance Studies of a Three Stage High Pressure Research Turbine with 3-D...

... the measured velocity during a combined interaction at the relative phase angle of ϕ - ϕ 0 = 0.0 deg , as shown in Fig. 2 . The black-thin line shows the superposed effects of the wake and the potential field perturbation on the time mean flow measured during a combined interaction. The upper...

... patterns move downstream along the tip clearance vortex path in time. As a result of the wake influence, the orientation and extension of the tip clearance vortices as well as the flow blockage periodically vary in time. 05 06 2007 10 09 2007 31 07 2008 blades compressors flow...

...Matthias Schleer; Reza S. Abhari This work reports on flow measurements taken within the vaneless diffuser of a scaled-up model of a small-scale, highly loaded unshrouded compressor with large relative tip clearance. The aims are to describe and to analyze the influence of the clearance flow...

... computational fluid dynamics heat transfer rotors flow measurement pressure measurement temperature measurement aerodynamics 13 07 2006 17 07 2006 24 03 2008 The 50% span data (Fig. 23 ) and the 90% span data (Fig. 24 ) are examples of the effect of cooling on the heat-flux...

... turbulence flow measurement One approach for increasing the efficiency of gas turbines is to raise the turbine inlet temperature, which typically exceeds the allowable material limits for the blade. A common technique for blade cooling is to circulate coolant air through internal cooling passages...

...Jeffrey P. Bons; Daniel Reimann; Matthew Bloxham Flow measurements were made on a highly loaded low pressure turbine blade in a low-speed linear cascade facility. The blade has a design Zweifel coefficient of 1.34 with a peak pressure coefficient near 47% axial chord (midloaded). Flow and surface...

... blades. Detailed laser Doppler velocimetry flow measurements are available at various cross sections inside the impeller blades highlighting the presence of low-velocity flow regions near the shroud. Particular attention is focused on understanding the physical mechanisms which govern the flow phenomena...