Results 21 to 30 of about 67,962 (296)
Critical Angle and Fundamental Frequency of Symmetric Airfoils at Low Reynolds Numbers [PDF]
Journal of Applied Fluid Mechanics, 2022 The unsteady vortex evolution of NACA 0012 airfoil is numerically investigated at low angles of attack ranging from 0° to 10° where the separation is performed from the trailing edge. The Reynolds number ranges between 1000 and 4000.
D. F. Kurtulus
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Otopro, 2023 At this time the power plant still uses a lot of coal fuel, so it is necessary to look for alternative energy, one of which is wind energy. Wind turbines are devices that can convert kinetic energy in the wind into mechanical energy which is then ...
Danang Febriyanto +3 more
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Review of the Study on High-angle-of-attack Flight Problems of Aircraft
Hangkong gongcheng jinzhan, 2022 The close combat in air battle is still inevitable in future.The accurate and agile nose-pointing capability at high-angle-of-attack is still essential and significant for fighter to survive and gain air superiority.According to the high-angle-of-attack ...
ZHANG Zijun +3 more
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Influence of attack angle on ventilated supercavitating flow at high Froude number condition
Xibei Gongye Daxue Xuebao, 2022 To study the influence of attack angle on ventilated supercavitating flow, a numerical model is established to simulate the supercavitation flow by using the inhomogeneous multiphase flow model and the SST k-ω turbulence model.
WANG Yifei +4 more
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Flutter Boundary Prediction of a Two Dimensional Airfoil in Transonic Flight Regime with the Preset Angles of Attack [PDF]
Xibei Gongye Daxue Xuebao, 2018 Angle of attack has impact on transonic flow filed and aerodynamic force, but most of current researches on flutter use zero angle hypothesis, which has no consideration about angle of attack.
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Research on fixed attack angle attack angle and height flying of hypersonic aircraft [PDF]
Advances in Computer Science Research, 2015 Attack angle is a most important factor that affect the stability of aircraft no matter for supersonic type or hypersonic type aircraft. And height is another factor that will affect the force and moment of the whole dynamic system by change the density of air and finally it will also affect the stability of the whole system. So in this paper a kind of
Junwei Lei, Heng Li, Guangbin Wu
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Aerospace, 2022 In order to improve the thermal protection performance of the active thermal protection system (TPS) based on the spike and jet, an adjustable non-ablative thermal protection system, of which the spike can be rotated in the direction of the free stream ...
Bin Chang, Jie Huang, Wei-Xing Yao
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Analysis of the Magnus Moment Aerodynamic Characteristics of Rotating Missiles at High Altitudes
International Journal of Aerospace Engineering, 2021 The Magnus moment characteristics of rotating missiles with Mach numbers of 1.3 and 1.5 at different altitudes and angles of attack were numerically simulated based on the transition SST model.
Yihang Xu, Shaosong Chen, Hang Zhou
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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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, 2023 One of the hallmarks of the collective movement of large schools of pelagic fish are waves of shimmering flashes that propagate across the school, usually following an attack by a predator.
Assaf Pertzelan (16632091) +2 more
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