Results 51 to 60 of about 2,751,374 (249)
Experimental Investigation in Drag Coefficient of Cubes
Applied SciencesFocused on the needs of an accurate drag model for non-spherical particles, a free settling experiment was performed in this paper using the uniformed cube and spliced cube.
Juanjuan Wang +5 more
doaj +1 more source
Drag coefficients derived from ocean current and temperature profiles at high wind speeds
Tellus: Series A, Dynamic Meteorology and Oceanography, 2018 Two bottom-up methods based on the turbulence closure and bulk model were utilised to estimate drag coefficients at high wind speeds based on ocean current and temperature profiles observed by two subsurface buoys during Typhoon Megi in the South China ...
Zhongshui Zou +4 more
doaj +1 more source
Study and Evaluation of the Effects of Bionic Groove Structures Applied to Wheel Spokes on the Aerodynamics of a Car Model [PDF]
Journal of Applied Fluid MechanicsDecreasing the wheel aerodynamic drag is one of the important measures for lowering vehicle drag and improving fuel efficiency. The innovation of this study is designing the bionic non-smooth groove structure on the spoke surface as a drag reduction ...
T. H. Huang +4 more
doaj +1 more source
A Framework to Estimate Local Atmospheric Densities With Reduced Drag‐Coefficient Biases
Space Weather, 2022 An accurate estimation of upper atmospheric densities is crucial for precise orbit determination (POD), prediction of low Earth orbit satellites, and scientific studies of the Earth's atmosphere.
Vishal Ray +4 more
doaj +1 more source
Boundary layer, skin friction, and boattail pressure measurements from the YF-12 airplane at Mach numbers up to 3 [PDF]
, 1978 In-flight measurements of boundary layer and skin friction data were made on YF-12 airplanes for Mach numbers between 2.0 and 3.0. Boattail pressures were also obtained for Mach numbers between 0.7 and 3.0 with Reynolds numbers up to four hundred million.
Fisher, D. F.
core +1 more source
Drag Coefficients of Varying Dimple Patterns [PDF]
, 2018 There are many golf balls on the market today with varying dimple sizes, shapes, and distribution. These proprietary differences are all designed to reduce drag on the balls during flight.
Crosser, Michael S., Seeley, James M.
core +1 more source
A drag coefficient for application to the WLTP driving cycle
, 2017 The aerodynamic drag characteristics of a passenger car have, typically, been defined by a single parameter: the drag coefficient at a yaw angle of 0°. Although this has been acceptable in the past, it does not provide an accurate measure of the effect ...
J. Howell, D. Forbes, M. Passmore
semanticscholar +1 more source
Aerodynamic analysis of wind turbine blades: A numerical study
Gazi Üniversitesi Fen Bilimleri DergisiIn this study, the aerodynamic performance of different wind turbine blades including FX 63-137, NACA 6415, NACA 63-415 has been investigated. XFLR5 has been employed to analyze the wind turbine blade at Reynolds numbers ranging from 1.5x105 to 1x106 and
İlker Yılmaz +2 more
doaj +1 more source
Jixie qiangdu, 2017 In order to study the drag reduction performance of non-smooth circular cylinder,the SST k-ω turbulence model was been used to simulate the flow around a circular cylinder and studied the drag reduction performance of a circular cylinder at the ...
WANG GuoRong +4 more
doaj
Design and numerical analysis of bicycle driver compartment area through CFD simulation
Results in EngineeringUpright-seat bicycles exhibit poor aerodynamics, with both rider and bicycle generating significant drag intensified by wind resistance, cold air, and rainfall.
Boru Godana Golo +3 more
doaj +1 more source