Results 231 to 240 of about 5,447,507 (295)
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Atmospheric Research, 2020
Fog water collection gained interest in recent years as an emerging solution for water scarcity in arid and semi-arid areas. During a fog event, a porous mesh screen of plastic polymer retains the water through droplet impaction, where the droplets ...
Danilo Carvajal, Luis Silva-Llanca
exaly +2 more sources
Fog water collection gained interest in recent years as an emerging solution for water scarcity in arid and semi-arid areas. During a fog event, a porous mesh screen of plastic polymer retains the water through droplet impaction, where the droplets ...
Danilo Carvajal, Luis Silva-Llanca
exaly +2 more sources
Aerodynamic efficiency of axial flapping kinematics
Australian Journal of Mechanical Engineering, 2019In the present study, an innovative concept of axial flapping wing model is analysed to study and improve the aerodynamic efficiency for vertical takeoff microaerial vehicle.
Vishnu Kumar G C, Dilip A Shah
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Improving aerodynamic efficiency of a Skywalker drone
AIP Conference Proceedings, 2020Nowadays, fixed wing drones are being adapted widely into many industries. However, fixed wing drones are relatively more costly than quadcopter drones and have a lot of improvement to be made. For example, in terms of aerodynamic efficiency. This paper aims to improve the flight time of a Skywalker drone by using a different airfoil for the wing.
null Jayavarman +3 more
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Advancing Aerodynamic Efficiency in Flight Testing
Aerospace Testing InternationalMiniature pressure scanners offer new measurement opportunities in a range of aerospace ...
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Electric power components and systems, 2023
Unmanned aerial vehicles (UAVs) have an important place in today’s technologies because of the solutions they bring to many critical problems in military and civilian application around the world.
Berk Kaynak, A. Arabul
semanticscholar +1 more source
Unmanned aerial vehicles (UAVs) have an important place in today’s technologies because of the solutions they bring to many critical problems in military and civilian application around the world.
Berk Kaynak, A. Arabul
semanticscholar +1 more source
Adaptive Virtual Inertia Controller for DFIGs Considering Nonlinear Aerodynamic Efficiency
IEEE Transactions on Sustainable Energy, 2021With increasing the share of renewable energy sources (RESs) in the power systems, the frequency stability becomes a crucial concern. This issue can be handled with some auxiliary frequency controllers which use the kinetic energy of blades of the ...
A. Ashouri‐Zadeh, M. Toulabi
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Is Flapping Flight Aerodynamically Efficient?
32nd AIAA Applied Aerodynamics Conference, 2014Flapping flight is much less efficient for some insects than previously thought. The induced power factor for flapping wings is discussed in terms of a number of non-ideal effects for hovering and for forward flight. These effects include losses due to non-uniform downwash, wake periodicity and effective disk area.
Nabawy, M.R.A. +1 more
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Aerodynamic efficiency of gliding birds vs comparable UAVs: a review
Bioinspiration & Biomimetics, 2020Here, we reviewed published aerodynamic efficiencies of gliding birds and similar sized unmanned aerial vehicles (UAVs) motivated by a fundamental question: are gliding birds more efficient than comparable UAVs?
C. Harvey, D. Inman
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Numerical Study of Aerodynamic Efficiency of a Wing in Simulated Rain Environment
Journal of Aircraft, 2014Zhenlong Wu
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