Results 21 to 30 of about 5,447,507 (295)
Science Robotics, 2020 A bioinspired wing generates lift that is robust to gusts and freestream turbulence without sacrificing flight duration. Small-scale drones have enough sensing and computing power to find use across a growing number of applications.
M. Di Luca +4 more
semanticscholar +1 more source
Aerodynamics-assisted, efficient and scalable kirigami fog collectors [PDF]
Nature Communications, 2021 AbstractTo address the global water shortage crisis, one of the promising solutions is to collect freshwater from the environmental resources such as fog. However, the efficiency of conventional fog collectors remains low due to the viscous drag of fog-laden wind deflected around the collecting surface.
Jing Li +7 more
openaire +3 more sources
Effect of Wing Corrugation on the Aerodynamic Efficiency of Two-Dimensional Flapping Wings
Applied Sciences, 2020 Many previous studies have shown that wing corrugation of an insect wing is only structurally beneficial in enhancing the wing’s bending stiffness and does not much help to improve the aerodynamic performance of flapping wings.
Thanh Tien Dao +3 more
semanticscholar +1 more source
Научный вестник МГТУ ГА, 2018 The article considers the issue of aerodynamics efficiency implementation taking into account certification requirements for flight safety. Aerodynamics efficiency means high aerodynamic performance (depending on the airplane size), aerodynamic ...
V. I. Shevyakov
doaj +1 more source
, 2020 Steady airflow over the wing of an aircraft in-flight is critical to achieving maximum aerodynamic performance. However, commercial flight routes are most times characterized by fluctuations in the airflow properties. The unsteadiness in the air velocity
C. Ejeh +4 more
semanticscholar +1 more source
Enhanced data efficiency using deep neural networks and Gaussian processes for aerodynamic design optimization [PDF]
, 2020 Adjoint-based optimization methods are attractive for aerodynamic shape design primarily due to their computational costs being independent of the dimensionality of the input space and their ability to generate high-fidelity gradients that can then be ...
Sudharshan Ashwin Renganathan +2 more
semanticscholar +1 more source
CFD Investigation of Dual Synthetic Jets on an Optimized Aerofoil's Trailing Edge [PDF]
Journal of Applied Fluid MechanicsIn fluid dynamics, a flow control device is used to control, manage, or modify the behavior of a fluid flow. Jet actuators work by releasing high-velocity jets of fluid, usually air or gas, into the surrounding environment to control or manipulate the ...
R. Srinath +3 more
doaj +1 more source
Definition and discussion of the intrinsic efficiency of winglets [PDF]
INCAS Bulletin, 2018 Three simple equations are derived to define the “Intrinsic Aerodynamic Efficiency of Winglets” independent of the horizontal extension of the winglet and independent of the winglet’s (relative) height.
Dieter SCHOLZ
doaj +1 more source
Effect rules of aft propeller pitch angle on the performance of contra rotation propeller
Hangkong gongcheng jinzhan, 2023 The pitch angle of the contra rotation propeller (CRP) has important effect on the aerodynamic interference between the front and aft blades,which can change the aerodynamic performance of the propeller.
SUN Zhaozheng, YAN Wenhui, CAO Desong
doaj +1 more source
Flight Test Maneuvers for Efficient Aerodynamic Modeling [PDF]
Journal of Aircraft, 2011 Novel flight test maneuvers for efficient aerodynamic modeling were developed and demonstrated in flight. Orthogonal optimized multi-sine inputs were applied to aircraft control surfaces to excite aircraft dynamic response in all six degrees of freedom simultaneously while keeping the aircraft close to chosen reference flight conditions.
openaire +1 more source