... effectiveness crossflow diffusion slot hole turbine blade gas turbine heat transfer and film cooling The inlet temperature of the current gas turbine has steadily been increased to a notably high level for improved thermal efficiency and power density. To achieve the needed cooling effectiveness...

..., the computational fluid dynamics (CFD)-based approach for such droplet problems requires enormous costs. Thus, the application of CFD simulation in the turbine blade's early-stage design is challenging, requiring iterative optimization for adjusting design with performance prediction. Therefore, this study proposed...

...Juan Manuel Gallardo; Oscar Bermejo; Julen Hernández; Gadea García; Jon Gallego; Daniel Knappett; Vsevolod Kharyton; Mike Wurl; Roque Corral This paper describes an aeroelastic experimental campaign on a low-pressure turbine-bladed rotor in a rotating wind tunnel that took place as a part...

...Huihui Wang; Qinghua Deng; Wei He; Zhenping Feng Efficient cooling is imperative for gas turbine blades that suffer from hot gas erosion. Cooling and flow characteristics of multi-channel wall jet structure combined with film holes for blade leading edge are numerically investigated through...

...Seungchan Baek; Jaehyun Ryu; Myeonghwan Bang; Wontae Hwang Unlike the ideal conditions considered in most previous studies, the actual cooling flow passage inside gas turbine blades is extremely complex. This complexity is due to the geometrical restrictions resulting from the external cooling...

...Haiteng Ma; Wei Zeng; Hongmei Jiang; Jun Hong Cooling design of highly loaded turbine blade tips is challenged by the scarcity of experimental data and the lack of physical understanding in cooling and overtip leakage (OTL) interaction under transonic conditions. To address these issues, this paper...

... , “ Numerical Investigation on Flow and Heat Transfer in Matrix Cooling Channels for Turbine Blades ,” ASME Paper No. GT2016-56279 . [2] Bu , S. , Yang , Z. , Zhang , W. , Liu , H. , and Sun , H. , 2016 , “ Research on the Thermal Performance of Matrix Cooling Channel With Response...

...Sergen Sakaoglu; Harika S. Kahveci The pressure difference between suction and pressure sides of a turbine blade leads to tip leakage flow, which adversely affects the first-stage high-pressure (HP) turbine blade tip aerodynamics. In modern gas turbines, HP turbine blade tips are exposed to extreme...

... trailing edge. Fan Fluid dynamics Turbine blade Turbomachinery blading Compressor Turbine aerodynamic design Measurement advancements Heat transfer phenomena Compressor Turbine components Gas turbine engines Design With the development of turbocharger technology, a variable...

... case, the regions characterized by high production rate occur more upstream than in the other cases. Total pressure measurements show that in the steady case, the losses are almost entirely generated by boundary layers that reflect into a thick and deep turbine blade wake profile. There is also...

... in the J OURNAL OF T URBOMACHINERY . Manuscript received August 18, 2017; final manuscript received August 23, 2017; published online September 26, 2017. Editor: Kenneth Hall. 18 08 2017 23 08 2017 Fan Measurement techniques Turbine blade Compressor Turbine aerodynamic design...

..., periodic wakes, and flows over Stripf's turbine blades with roughness from hydraulically smooth to fully rough. The predicted skin friction and heat transfer properties by the current model agree well with the published experimental and numerical data. Fig. 11 Nu for the Stripf's [ 47 ] LPT blade...

... in the J OURNAL OF T URBOMACHINERY . Manuscript received October 2, 2016; final manuscript received May 30, 2017; published online July 19, 2017. Assoc. Editor: Rolf Sondergaard. 02 10 2016 30 05 2017 Computational fluid dynamics Fluid dynamics Heat transfer Turbine blade...

... Fluid dynamics Heat transfer Measurement techniques Turbine blade Film cooling Measurement advancements Heat transfer phenomena Compressor Turbine components Gas turbine engines A coolant-to-mainstream density ratio of around two exists in high pressure (HP) turbines due...

... Fan Fluid dynamics Measurement techniques Turbine blade Compressor Turbine aerodynamic design Measurement advancements Heat transfer phenomena Turbine components Gas turbine engines Copyright © 2017 by ASME 2017 0889-504X/2017/139(10)/101003/15/ $25.00 ...

... in the J OURNAL OF T URBOMACHINERY . Manuscript received September 1, 2016; final manuscript received March 9, 2017; published online May 9, 2017. Editor: Kenneth Hall. 01 09 2016 09 03 2017 Computational fluid dynamics Fan Fluid dynamics Measurement techniques Turbine blade...

... Turbine blade Turbomachinery blading Compressor Turbine aerodynamic design Measurement advancements Design Engine architectures often force turbine designers to employ low aspect ratio stator vanes. Typical drivers for this suboptimal aerodynamic choice include the requirement to pass...

... of Film-Cooling Designs for an Unshrouded High-Pressure Turbine Blade ,” ASME Paper No. 99-GT-330. 10.1115/99-GT-330 [15] Sinha , A. K. , Bogard , D. G. , and Crawford , M. E. , 1991 , “ Film-Cooling Effectiveness Downstream of a Single Row of Holes With Variable Density Ratio ,” ASME...

... of the low-pressure turbine blades of an aero-engine, with varying flow angles, blade thickness, and suction surface lift styles. Reynolds-averaged Navier–Stokes (RANS) calculations are performed for a single aspect ratio (AR) and constant inlet boundary layer thickness. To characterize the cascades studied...

... . Manuscript received November 4, 2016; final manuscript received November 23, 2016; published online February 28, 2017. Editor: Kenneth Hall. 04 11 2016 23 11 2016 Computational fluid dynamics Heat transfer Turbine blade Turbomachinery blading Film cooling Measurement advancements...