Results 211 to 220 of about 75,453 (258)

A three-level discretization framework for dynamic behaviors of graphene-coated rotational blades with preset-angle sandwich structure under complex loads. [PDF]

Sci Rep
Bai B, Li H, Yi X, Tang J, Liu Y, Zhang F, Wang Z, Li X.   +7 more
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Synergistic ANN-GA-CFD framework for high-performance Savonius wind turbine optimization with experimental validation. [PDF]

Sci Rep
Sehsah HM, Sakr IM, Abdelsalam AM, Saad AS.   +3 more
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Structural design and performance analysis of external gear pump for high viscosity polymer pumping. [PDF]

Sci Rep
Shi B, Yuan Y.
europepmc   +1 more source

Oxygen tension alters cartilage redox balance in response to traumatic impact. [PDF]

Bone Joint Res
Wang J, Scheidt GE, Henak CR.
europepmc   +1 more source

Frequency-angle decoupling design for grid-etched piezoelectric MEMS cantilevers and its application to quasi-static micromirrors. [PDF]

Microsyst Nanoeng
Xue W, Su Y, Qiao W, Liu Y, Yang Y, Zhao H, Zhang P, Shen G, Chen H, Wang Y, Wu Z, Wang L.   +11 more
europepmc   +1 more source

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Optimization of Varibable Pitching for VAWT at Low Tip Speed Ratio

Proceedings of the 6th International Conference on Engineering & MIS 2020, 2020
In this work, variable active control pitching is applied to overcome the incapability of self-starting in NACA0018 three-bladed Vertical Axis Wind Turbine (VAWT). The study is conducted at low tip speed ratio of zero, and one, using CFD SST turbulent Model in COMSOL Multyphysics (FEM Solver).
Mohamed Elgabaili, Ahmed Tahir, Osama Algbaeili, Saleh Basher, Fares Amir   +4 more
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Numerical study of the effect of tip-speed ratio on hydrokinetic turbine wake recovery

Renewable Energy, 2022
Abstract The predictive capabilities of blade-resolved unsteady Reynolds averaged Navier-Stokes (URANS) and detached eddy simulation (DES), the most commonly used hybrid RANS/large eddy simulation (LES) model, are assessed for hydrokinetic turbine performance and mean and turbulent flows in the intermediate-wake region, and results for a range of tip-
Oumnia El Fajri, Joshua Bowman, Shanti Bhushan, David Thompson, Tim O'Doherty   +4 more
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An Actuator Disc Theory for the Shed Wake at Low Tip Speed Ratios

SAE Technical Paper Series, 1965
<div class="htmlview paragraph">A model of flow through a helicopter rotor, suitable for estimating effects of shed wake in hovering and at low tip speed ratios, is described. With this method, the result for aerodynamic damping of blade bending oscillations is in agreement with more elaborate theories.
openaire   +2 more sources