Results 41 to 50 of about 9,128,380 (291)
Plunging Airfoil: Reynolds Number and Angle of Attack Effects
Aerospace, 2021 Natural flight has consistently been the wellspring of many creative minds, yet recreating the propulsive systems of natural flyers is quite hard and challenging.
Emanuel A. R. Camacho +3 more
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Rotor blade design and dynamic characteristics analysis of unmanned helicopter
Hangkong gongcheng jinzhanThe widespread application of composite materials in blades also makes the force and stiffness characteristics of blades more complex than traditional blades.
GAO Hongbo
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Low Reynolds Number Rotor Blade Aerodynamic Analysis
MATEC Web of Conferences, 2019 Maintaining a steady hover flight in a rotorcraft usually requires high energy input. The aim of the paper is to prove that it is possible to vastly reduce energy use in a rotorcraft by reducing the disc loading.
Tulwin Tytus
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Optimal Swimming at Low Reynolds Numbers [PDF]
Physical Review Letters, 2004 Efficient swimming at low Reynolds numbers is a major concern of microbots. To compare the efficiencies of different swimmers we introduce the notion of ``swimming drag coefficient'' which allows for the ranking of swimmers. We find the optimal swimmer within a certain class of two dimensional swimmers using conformal mappings techniques.
Avron, J. E., Gat, O., Kenneth, O.
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A 'reciprocal' theorem for the prediction of loads on a body moving in an inhomogeneous flow at arbitrary Reynolds number - CORRIGENDUM [PDF]
, 2011 Several forms of a theorem providing general expressions for the force and torque acting on a rigid body of arbitrary shape moving in an inhomogeneous incompressible flow at arbitrary Reynolds number are derived.
Magnaudet, Jacques, Jacques Magnaudet
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Numerical Validation of a Multi-Dimensional Similarity Law for Scaled STOVL Aircraft Models
AerospaceThe complex jet-ground interactions of Short Take-off and Vertical Landing (STOVL) aircraft are critical to flight safety and performance, yet studying them with traditional full-scale wind tunnel tests is prohibitively expensive and time-consuming ...
Shengguan Xu +7 more
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DronesLow-aspect-ratio flying-wing unmanned aerial vehicles (UAVs) are attractive drone platforms for civilian remote sensing, environmental monitoring, infrastructure inspection, disaster assessment, and persistent public-service monitoring because their ...
Jianfeng Wang +6 more
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Decay of Turbulence at High Reynolds Numbers [PDF]
Physical Review Letters, 2015 Turbulent motions in a fluid decay at a certain rate once stirring has stopped. The role of the most basic parameter in fluid mechanics, the Reynolds number, in setting the decay rate is not generally known. This Letter concerns the high-Reynolds-number limit of the process. In a classical grid-turbulence wind-tunnel experiment that both reaches higher
Michael Sinhuber +2 more
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Dynamics of a high-Reynolds-number bubble rising within a thin gap [PDF]
, 2012 We report an experimental analysis of path and shape oscillations of an air bubble of diameter d rising in water at high Reynolds number in a vertical Hele-Shaw cell of width h.
Billet, Anne-Marie +3 more
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Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network
FEBS Letters, EarlyView.Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley +1 more source