Results 51 to 60 of about 6,203 (293)

Aerodynamic design and numerical simulation of mixed-axial flow multi-stage compressor

open access: yesZhongguo Jianchuan Yanjiu, 2018
[Objectives] The performance of a gas turbine engine can be determined by the performance of the compressor. As one of the core components of a gas turbine engine,the design of the compressor is of critical importance in the design of the engine overall.[
ZHANG Xiaoyang   +3 more
doaj   +1 more source

On the Flow in a Water Turbine of Axial Flow Type

open access: yesTransactions of the Japan Society of Mechanical Engineers, 1959
The air test of a model of the propeller turbine was performed to reconsider the methods of designing Kaplan turbines by the usual two-dimensional treatments. The performances of it, the flow conditions at the inlet and outlet of the runner and the pressure distributions on the running blades were measured to compare with the ones of two-dimensional ...
KAMIMOTO, Goro   +2 more
openaire   +3 more sources

Interaction of Rim Seal and Annulus Flows in an Axial Flow Turbine

open access: yesVolume 5: Turbo Expo 2003, Parts A and B, 2003
A combined computational fluid dynamics (CFD) and experimental study of interaction of main gas path and rim sealing flow is reported. The experiments were conducted on a two stage axial turbine and included pressure measurements for the cavity formed between the stage 2 rotor disc and the upstream diaphragm for two values of the diaphragm-to-rotor ...
Cao, C   +3 more
openaire   +5 more sources

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

Secondary flow reduction techniques in linear turbine cascades [PDF]

open access: yes, 1993
This thesis investigates a novel secondary flow reduction method. The inlet boundary layer to a linear turbine cascade is skewed by injection of air through an upstream slot to oppose regular generated negative stream wise vorticity.
Biesinger, T.E, Biesinger, Thomas Ernst
core  

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Experiments in a turbine cascade for the validation of turbulence and transition models [PDF]

open access: yes, 1995
This thesis presents a detailed investigation of the secondary flow and boundary layers in a large scale, linear cascade of high pressure turbine rotor blades.
Moore, H, H. Moore
core  

The Effect of Suction Side Tubercles on Torque Output of a Steam Turbine Low-Pressure Last Stage Blade

open access: yesEnergies, 2020
Flow separation and different kinds of stall flows occur under low load conditions for steam turbine last stage blades. In order to delay the flow separation and increase turbine power production, we applied suction side tubercles on steam turbine low ...
Jing Zhang   +5 more
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Techno-Economic Analysis of Gas Turbine Compressor Washing to Combat Fouling [PDF]

open access: yes, 2015
Among the major deterioration problems a gas turbine encountered while in operation is compressor blade fouling. This is the accumulation and adhesion of dirt and sediment on the compressor blade which contributes between 70 to 85% of gas turbine ...
Abass, Kabir Oliade
core  

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