Aerofoil behaviour at high angles of attack and at Reynolds numbers appropriate for small wind turbines [PDF]
, 2014 The aerodynamic characteristics of a NACA0018 aerofoil have been investigated experimentally for incidence angles ranging from 0° to 180° in closed-jet and open-jet wind tunnels with different blockage coefficients at Reynolds numbers from 60,000 to 140 ...
Dominy, Robert G +3 more
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Numerical simulation of low reynolds number 2-d rough blade compressor cascade
Frontiers in Energy Research, 2022 In this paper, a double-circular-arc cascade was used as the research object to study the effect of roughness on the compressor cascade under the conditions of different incoming attack angles. The Reynolds number of the cascade is 1.5×105 .
Li-Song Wang +4 more
doaj +1 more source
A 'reciprocal' theorem for the prediction of loads on a body moving in an inhomogeneous flow at arbitrary Reynolds number [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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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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Leading-Edge Vortex Characteristics of Low-Aspect-Ratio Sweptback Plates at Low Reynolds Number
Applied Sciences, 2021 A sweptback angle can directly regulate a leading-edge vortex on various aerodynamic devices as well as on the wings of biological flyers, but the effect of a sweptback angle has not yet been sufficiently investigated.
Jong-Seob Han, Christian Breitsamter
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Comparison of a grid-based CFD method and vortex dynamics predictions of low Reynolds number cylinder flow [PDF]
, 2006 Computational fluid dynamics models range from the finite difference type grid-based method to the Lagrangian style vortex cloud simulation technique for solving the Navier-Stokes equations.
Lewis, R. I., Baranyi, László
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Design of a control system for a 1.5 m diameter coaxial rigid rotor model
Hangkong gongcheng jinzhanAs a key equipment for rotor wind tunnel testing, the design specifications and control accuracy of the rotor test bench directly determine the testing accuracy and effectiveness of the rotor wind tunnel testing.
LIU Shi, SHAO Tianshuang, LIU Xiangnan
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Flow characteristics over NACA4412 airfoil at low Reynolds number
EPJ Web of Conferences, 2016 In this study, the flow phenomena over NACA4412 were experimentally observed at various angle of attack and Reynolds number of 25000, 50000 and 75000, respectively.
Genç Mustafa Serdar +5 more
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Control surface effectiveness of low Reynolds number flight vehicles
Journal of Fluid Science and Technology, 2014 Low-speed wind tunnel tests are carried out to investigate the control surface effectiveness at low Reynolds numbers (Re = 20,000-80,000). A thick airfoil, NACA0012, has a nonlinearity of the control surface effectiveness, which are associated with flow ...
Masayuki ANYOJI +6 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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