Results 71 to 80 of about 285,528 (136)
Energies, 2019 To explore the effect of the height of vortex generators (VGs) on the control effect of boundary-layer flow, the vortex characteristics of a plate and the aerodynamic characteristics of an airfoil for VGs were studied by both wind tunnel experiments and ...
Xinkai Li, Ke Yang, Xiaodong Wang
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Investigation of relationship between drag and lift coefficients for a generic car model [PDF]
, 2014 The paper presents a study of aerodynamic characteristics of a car, which has the simplified geometric shape, so called Ahmed body. Flow around the body and the influence of its rear slant angle on drag are widely studied by numerous researchers. However,
MASSOUH, Fawaz, DOBREV, Ivan
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Hangkong gongcheng jinzhanAs the high accuracy CFD method is not suitable for the real-time rapid computation of cluster unmanned aerial vehicle（UAV）, a rapid calculation method of equivalent trailing vortex drag reduction is proposed for the rapid optimization of flight ...
LI Yunluo +5 more
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Drag Performance of Twist Morphing MAV Wing
MATEC Web of Conferences, 2016 Morphing wing is one of latest evolution found on MAV wing. However, due to few design problems such as limited MAV wing size and complicated morphing mechanism, the understanding of its aerodynamic behaviour was not fully explored.
Ismail N.I. +4 more
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Numerical Study of Surface Flow for Ahmed Body in Crosswind Conditions
Automotive ExperiencesThis study investigates standard vehicles' flow behavior and drag during crosswind conditions by a numerical approach. The model is a half-scaled Ahmed body with a slant angle of 25°. Reynolds Average Navier-Stokes equations with turbulent model k-ω SST
Pham Van Duy +4 more
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Kongqi donglixue xuebaoVortex surfing formation flight, a bioinspired lift enhancement and drag reduction technique, holds potential for reducing fuel consumption and extending range, serving as a critical pathway for aviation sustainability.
Xiyu ZHANG +7 more
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Aerodynamics of F1 car side mirror
, 2007 This study investigates the aerodynamic performance of a Formula 1 carrear view side mirror when the location of its glass is varied inside its frame. Bothexperimental and computational studies have been carried out for a simplifiedtwo-dimensional model ...
Hu, Zhiwei W., Rind, Elad
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工程科学与技术To investigate the turbulent drag reduction characteristics of microstructure walls, the particle image velocimetry system was utilized to observe water flow characteristics across superhydrophobic, riblet, and smooth walls.
Chunye LIU +5 more
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A conceptual design methodology for low speed high altitude long endurance unmanned aerial vehicles [PDF]
, 2000 A conceptual design methodology was produced and subsequently coded into a Visual C++ (GUI) environment to facilitate the rapid comparison of several possible configurations to satisfy High Altitude Long Endurance (FIALE) unmanned aircraft (UAV ...
Altman, Aaron
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Water Science and Engineering, 2015 Fluid flow past twin circular cylinders in a tandem arrangement placed near a plane wall was investigated by means of numerical simulations. The two-dimensional Navier-Stokes equations were solved with a three-step finite element method at a relatively ...
Guo-qiang Tang +3 more
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