Results 41 to 50 of about 32,908 (214)

Experimental Investigation of Rotor-Stator Interaction in a Centrifugal Pump with Several Vaned Diffusers [PDF]

open access: yes, 1989
This paper describes an experimental investigation of rotor-stator interaction in a centrifugal pump with several vaned diffusers. Steady and unsteady diffuser vane pressure measurements were made for a two-dimensional test impeller.
Acosta, A. J.   +3 more
core   +3 more sources

Research on the Flow Mechanism of a Large-Scale Wind Turbine Blade Based on Trailing Edge Flaps

open access: yesFluids
This study was performed based on the previous work of this research group to promote the practical engineering application of trailing edge flaps. Specifically, the established “intelligent blade” simulation platform was used for simulation calculations,
Yifan Liu   +5 more
doaj   +1 more source

Adaptive belt precision grinding for the weak rigidity deformation of blisk leading and trailing edge

open access: yesAdvances in Mechanical Engineering, 2017
Blisk is an important component for the aero-engine, whose surface quality plays a significant role in its performance. So it is necessary to develop a novel and viable method to improve the blisk leading and trailing edge profile shape precision and ...
Guijian Xiao, Yun Huang
doaj   +1 more source

Performance and Effect of Load Mitigation of a Trailing-Edge Flap in a Large-Scale Offshore Wind Turbine

open access: yesJournal of Marine Science and Engineering, 2020
As a result of the large-scale trend of offshore wind turbines, wind shear and turbulent wind conditions cause significant fluctuations of the wind turbine’s torque and thrust, which significantly affect the service life of the wind turbine gearbox
Xin Cai   +3 more
doaj   +1 more source

Trailing edge noise theory for rotating blades in uniform flow [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013
This paper presents a new formulation for trailing edge noise radiation from rotating blades based on an analytical solution of the convective wave equation. It accounts for distributed loading and the effect of mean flow and spanwise wavenumber. A commonly used theory due to Schlinker and Amiet predicts trailing edge noise radiation from rotating ...
Sinayoko, Samuel   +2 more
openaire   +4 more sources

Impact of Falling Blocks of High Pressure Turbine Rotor Blades With Squealer Tip on the Aerodynamic Performance and Vibration Characteristics

open access: yes发电技术
ObjectivesThe operating state under the condition of high-pressure turbine damage will have a certain impact on the performance and vibration of the gas turbine.
ZHAO Mingyang   +5 more
doaj   +1 more source

Simulation of the Influence of Wing Angle Blades on the Performance of Counter-Rotating Axial Fan

open access: yesApplied Sciences, 2022
We took the mining counter-rotating fan FBD No.8.0 as the research object, used orthogonal test and numerical simulation to study the influence of wing angle blade on fan performance, and simulated and analyzed its aerodynamic noise.
Guijun Gao   +4 more
doaj   +1 more source

Blade-Vortex Interaction Noise Controller Based on Miniature Trailing Edge Effectors

open access: yesThe International Journal of Acoustics and Vibration, 2018
The present work focuses on the alleviation of Blade Vortex Interaction (BVI) noise annoyance through a control methodology generating high-frequency aerodynamic BVI counter-actions. The low-power requirements make the Micro-Trailing Edge Effectors (MiTEs) particularly suited for this kind of application.
Modini, Sara   +3 more
openaire   +2 more sources

Supersonic fan blading [PDF]

open access: yes, 1974
Radially extending rotor blades are disposed on a hub to form a supersonic propulsion fan for a turbofan engine. The peripheral spacing of the blades is such as to avoid forming a channel or passageway between adjacent blades.
Goldstein, A. W.
core   +1 more source

Pressure Bifurcation Phenomenon on Supersonic Blowing Trailing Edges

open access: yes, 2018
Turbine blades operating in transonic-supersonic regime develop a complex shock wave system at the trailing edge, a phenomenon that leads to unfavorable pressure perturbations downstream and can interact with other turbine stages. Understanding the fluid
de Vicente, Javier   +3 more
core   +3 more sources

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