... , “ Flow-Control-Enabled Aggressive Turbine Transition Ducts and Engine System Analysis ,” AIAA J. Propul. Power , 23 ( 4 ), pp. 797 – 803 . 10.2514/1.13488 Cavity flows Fluid dynamics Impact on cavity leaking flows on performance Heat transfer phenomena Compressor Turbine components Gas...

...; published online May 3, 2018. Editor: Kenneth Hall. 23 11 2017 16 01 2018 Cavity flows Fluid dynamics Impact on cavity leaking flows on performance Heat transfer phenomena Compressor Turbine components Gas turbine engines Leaking flows Turbine inlet temperature...

... . Manuscript received November 20, 2017; final manuscript received January 3, 2018; published online April 30, 2018. Editor: Kenneth Hall. 20 11 2017 03 01 2018 Cavity flows Impact on cavity leaking flows on performance Turbomachinery blading Leaking flows Design Tip leakage...

... leaking flows on performance Heat transfer phenomena Compressor Turbine components Gas turbine engines Leaking flows In turbomachinery, designers have been forced to account for mixing of flows since the introduction of the gas turbine with its inherent hot flows and necessary cooling. One...

... transfer Film cooling Leaking flows This work is a continued study of Chen et al. [ 1 ]. Nowadays, gas turbine engines are widely used for land-based power generation, aviation propulsion, or other industrial applications. It has played a critical role in the industrialization of human society...

... on cavity leaking flows on performance Film cooling Heat transfer phenomena Compressor Turbine components Gas turbine engines Leaking flows Figure 1 also shows several gaps due to turbine assembly feature—stator–rotor interface and the gap along the mating hub endwall surfaces of adjacent...

... Compressor Leaking flows In gas turbines, tip clearance exists between the turbine blade tips and casing wall in order to prevent rubbing. The hot gas is driven across this tip clearance due to the pressure difference between the blade pressure side and suction side. After the tip leakage flow...

... Computational fluid dynamics Impact on cavity leaking flows on performance Leaking flows Centrifugal pumps Cavities are small extensions of the flowpath. They have an influence on the performance, often non-negligible, but investigations on cavities have mainly been conducted on axial machines...

..., 2016; published online February 7, 2017. Editor: Kenneth Hall. 27 07 2016 06 11 2016 Cavity flows Fluid dynamics Impact on cavity leaking flows on performance Heat transfer phenomena Compressor Turbine components Gas turbine engines Leaking flows Tip leakage, through...

... stall Surge Turbine aerodynamic design Compressor Leaking flows Design Operability A typical compressor design process involves initially using a through-flow method to design the blade velocity triangles across the span. The through-flow design often makes use of extensive experimental...

...) [ 3 ]. This large tip clearance can also be found in high pressure ratio small core axial compressors. Cavity flows Computational fluid dynamics Fan Impact on cavity leaking flows on performance Turbomachinery blading Turbine aerodynamic design Compressor Leaking flows Design...

... Turbine components Gas turbine engines Leaking flows The trend with commercial aero-engines is to increase by-pass ratio, especially through the introduction of gear boxes. This means the diameter and aspect ratio of low-pressure turbines (LPTs) continue to decrease. Currently, the secondary...

... by appropriately choosing the amount of injected rim seal purge flow. Cavity flows Leaking flows 18 07 2016 02 08 2016 Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the J OURNAL OF T URBOMACHINERY . Manuscript received July 18, 2016; final...

... dynamics Fan Cavity flows Compressor stall Leaking flows Tip clearance flow in axial compressors is a widely studied phenomenon due to its impact on performance and stall/surge margin. Tip clearance size is a dynamic feature, which can increase either temporarily during transient engine...

... 02 2016 10 02 2016 Cavity flows Computational fluid dynamics Heat transfer Film cooling Leaking flows In modern gas turbine engines, air is pressurized in a compressor, mixed with fuel, and ignited in a combustor. This hot, pressurized gas then enters the turbine section...

... Cavity flows Computational fluid dynamics Impact on cavity leaking flows on performance Leaking flows Secondary flows impact turbine performance through flow redistribution and providing loss-generating routes. Denton's canonical review paper [ 1 ] states that nearly one-third of the total...

... Aeromechanical instabilities Cavity flows Fan Measurement techniques Compressor stall Surge Turbine aerodynamic design Compressor Leaking flows Operability The development of modern high-speed compressors for jet engines and gas turbines has led to two objectives that are difficult to achieve...

... dynamics Heat transfer phenomena Compressor Turbine components Gas turbine engines Leaking flows During the last decades, aircraft turbomachinery has seen significant reductions in terms of costs, weight, and pollutant emissions. These improvements have been reached thanks to the large number...

... into this group are brush seals, leaf seals, finger seals [ 3 ], Figs. 1( a ) – 1( c ) and possibly the compliant plate seal [ 4 ], Fig. 1( d ) . Cavity flows Leaking flows 29 11 2014 25 08 2015 Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication...

... to the cavity to help the sealing. Cavity flows Fluid dynamics Heat transfer phenomena Compressor Turbine components Gas turbine engines Leaking flows This paper describes experiments in a subscale axial turbine stage equipped with an axially overlapping radial-clearance seal at the disk...