Results 11 to 20 of about 4,656,767 (234)
Capacitance Tip Timing Techniques in Gas Turbines [PDF]
, 2003 The vibration of turbomachinery blades is an important phenomenon to understand, observe and predict and is the reason for developing a tip timing measurement system.
Lawson, Craig P.
core +7 more sources
Numerical investigation of recess casing treatments in axial flow fans [PDF]
, 2003 T he casing treatment technique for the axial fan has never been more significant since its potential applications were recognized in gas turbines, tunnel ventilation and many other industrial applications where the axial fan would benefit from the ...
Ghila, Abdurazag M.
core +7 more sources
Effect of different electrode tip angles with tilted torch in stationary gas tungsten arc welding : A 3D simulation [PDF]
, 2013 In this study, the effect of different tip angles (30°, 60°, 90° and 120°) on the arc and weld pool behaviour is analysed in 2mm and 5mm arc lengths with tilted (70°) torch.
Parvez, Shahid +2 more
core +4 more sources
This study explored the effective operational range of fixed pitch wind turbines by focusing on extending the lower end of tip speed ratios. We investigated how these kinds of wind turbines perform under higher-than-rated wind speeds by analysing the ...
Yutaka Hasegawa (2728753) +2 more
core +11 more sources
Energies, 2021 In this study, the performance of offshore wind turbines at low tip speed ratio (TSR) is studied using computational fluid dynamics (CFD), and the performance of offshore wind turbines at low tip speed ratio (TSR) is improved by revising the blade ...
Lin Pan +3 more
doaj +1 more source
Effects of the vertical axis wind turbine on the velocity field of the wake flow
Nihon Kikai Gakkai ronbunshu, 2014 This paper deals with the wake flow behind a vertical axis wind turbine, focusing on the variation in the wake structure relative to the tip-speed ratio λ.
Mami WATANABE +2 more
doaj +1 more source
Wake Expansion and the Finite Blade Functions for Horizontal-Axis Wind Turbines
Energies, 2021 This paper considers the effect of wake expansion on the finite blade functions in blade element/momentum theory for horizontal-axis wind turbines. For any velocity component, the function is the ratio of the streamtube average to that at the blade ...
David Wood
doaj +1 more source
Effects of end plates on performance of a small straight-bladed vertical axis wind turbine
Journal of Fluid Science and Technology, 2017 The time mean characteristics and the torque variation of the straight-bladed vertical axis wind turbine attached with various end plates were examined in wind tunnel experiments, and they were associated with the effect of the wing tip shape on the ...
Seiji YAMADA +2 more
doaj +1 more source
Analysis of Structural Responses of a Horizontal Axis Wind Turbine at Maximum Aerodynamic Performance [PDF]
Journal of Applied and Computational MechanicsThis numerical analysis investigates the interplay between fluid dynamics and structural mechanics within a horizontal axis wind turbine. Tip speeds ranging from 1 to 8.1 are explored, focusing on blade structural responses at maximum aerodynamic ...
Ahmed TAIBAOUI +2 more
doaj +1 more source
An Axial Hydro-Kinetic Turbine for Optimum Power Extraction Using Tidal Dams [PDF]
Iranica Journal of Energy and Environment, 2018 The present paper describes analytical optimization and numerical simulation of a modern hydro-kinetic turbine. It was a tidal turbine with twin elliptic-rotors. The turbines were installed within the twin ducts inside of a tidal dam.
A. Zahedi Nejad, P. Zahedi Nejad
doaj +1 more source