Results 1 to 10 of about 89,370 (155)
Applied Sciences (Switzerland), 2022 Ultra-high-altitude unmanned aerial vehicles have created a high demand for the performance of propellers under low Reynolds numbers, while the efficiency of such propellers by the existing design framework has reached a bottleneck.
Yuan Yao, Yayun Yu
exaly +3 more sources
Applied Sciences (Switzerland), 2020 The objective of the current work is to experimentally investigate the effect of turbulent flow on an airfoil with a Gurney flap. The wind tunnel experiments were performed for the DTU-LN221 airfoil under different turbulence level (T.I.
Wei Jun Zhu, Junwei Yang, nailu Li
exaly +3 more sources
Numerical investigation on aerodynamic characteristics of a tiltrotor wing with serrated Gurney flap [PDF]
Scientific ReportsA novel serrated Gurney flap (SGF) is presented in this work, and its effects on the aerodynamic performance of a tiltrotor wing are analyzed using computational fluid dynamics techniques.
Hao Chen
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Increase in Ia Afferent Synaptic Excitation of SOD1 G93A Mouse Motoneurons by 2-Week Anodal Trans-Spinal Direct Current Stimulation Does Not Ameliorate the Cellular Burden of the Disease. [PDF]
Eur J NeurosciIn the presymptomatic SOD1 G93A mouse model of ALS, spinal motoneuron (MN) synaptic excitation is reduced due to disruptions in the postsynaptic elements of Ia synapses. Two weeks of anodal tsDCS were applied to SOD1 G93A animals to modulate MN synaptic excitation levels.
Jankowiak T +5 more
europepmc +2 more sources
Enhancing start-up and torque in Darrieus VAWTs through a novel plain gurney flap design [PDF]
Scientific ReportsEnhancing aerodynamic efficiency and self-starting torque in Darrieus-type Vertical Axis Wind Turbines (VAWTs) is essential for power generation under low and intermittent wind conditions.
Wallaaldin Eltayeb +4 more
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Segmented Gurney Flaps for Improved Wind Turbine Wake Recovery
Wind EnergyWhen wind passes through the rotor of a wind turbine, the velocity is decreased while turbulence is increased. The region of decreased wind speed behind the rotor is known as the wind turbine wake and is bounded by a complex structure of helical vortices.
Nirav Dangi +4 more
doaj +2 more sources
Wind EnergyMeeting the rising demand for renewable energy requires innovative solutions to enhance wind power extraction, particularly given demographic and geographic constraints on wind farm deployment.
Mario Lucas, Jorge Saavedra
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Computational study of vortex shedding and its effects on asymmetrical airfoil with gurney flap
International Journal of ThermofluidsThe rise in airport and airline operations has increased compelling interest in aircraft noise. The aerodynamic noise initiated by the high-lifting devices is now comparable to the aircraft engine's noise.
Atal Harichandan
exaly +3 more sources
Effect of Gurney flap Height and Mounting Position on the Performance of a Centrifugal Fan [PDF]
Journal of Applied Fluid Mechanics, 2022 The effect of Gurney flap height and mounting position on the head coefficient of a centrifugal fan at different Reynolds numbers is investigated experimentally.
M. Suresh, N. Sitaram
doaj +1 more source
Lift Enhancement of Tiltrotor Wing Using a Gurney Flap
International Journal of Aerospace Engineering, 2022 A numerical investigation was undertaken to explore the lift-enhancing characteristics of the Gurney flap on a tiltrotor wing. The heights of Gurney flaps range from 1 to 4% wing chord lengths.
Hao Chen, Bo Chen
doaj +1 more source