Results 21 to 30 of about 5,959 (263)

Application of Experimental Measurements in a Wind Tunnel to the Development of a Model for Aerodynamic Drag on Elite Slalom and Giant Slalom Alpine Skiers

open access: yesApplied Sciences, 2022
Aerodynamic drag is a major cause of energy losses during alpine ski racing. Here we developed two models for monitoring the aerodynamic drag on elite alpine skiers in the technical disciplines.
Matej Majerič   +4 more
doaj   +1 more source

Aerodynamic drag of modern soccer balls [PDF]

open access: yesSpringerPlus, 2013
Soccer balls such as the Adidas Roteiro that have been used in soccer tournaments thus far had 32 pentagonal and hexagonal panels. Recently, the Adidas Teamgeist II and Adidas Jabulani, respectively having 14 and 8 panels, have been used at tournaments; the aerodynamic characteristics of these balls have not yet been verified. Now, the Adidas Tango 12,
Asai, Takeshi, Seo, Kazuya
openaire   +2 more sources

Aerodynamics and Drag of a Car

open access: yesHighlights in Science, Engineering and Technology, 2023
According to Chinese economic development and human life improvement, the vehicle, as the most important transportation, goes into common people’s life gradually. The following problems of energy are highlighted day by day. In Chinese Manufacturing 2025, the idea of energy-saving and new energy vehicle was pointed out as an important development area ...
openaire   +1 more source

Study on Aerodynamic Drag Reduction by Plasma Jets for 600 km/h Vacuum Tube Train Sets

open access: yesMachines, 2023
In order to break through the speed bottleneck, researchers envision using tubes to cover high-speed maglev trains and extract some of the air inside the tubes, creating a low-density environment on the ground, greatly reducing the aerodynamic drag of ...
Ang Li   +5 more
doaj   +1 more source

Aerodynamic Drag of Streamers and Flags [PDF]

open access: yesJournal of Aircraft, 2005
Low-speed drag and flutter measurements of rectangular flags and streamers are presented. The streamers have aspect ratios between 10 and 30; the flag has an aspect ratio of 3.3. Operating Reynolds numbers are in the range from Re =2 × × 10 5 to 2 × × 10 6 .
A. C. Carruthers, A. Filippone
openaire   +1 more source

Aerodynamic drag reduction in a vehicle based on efficient global optimisation

open access: yesThe Journal of Engineering, 2018
Vehicle aerodynamic shape optimisation is a typical non-linear and computationally expensive black box problem, which is severely limited by time and cost of the objective function evaluations during the global optimisation process.
Chengping Yan   +4 more
doaj   +1 more source

Aerodynamic Robust Design Research Using Adjoint-Based Optimization under Operating Uncertainties

open access: yesAerospace, 2023
Robust optimization design (ROD) is playing an increasingly significant role in aerodynamic shape optimization and aircraft design. However, an efficient ROD framework that couples uncertainty quantification (UQ) and a powerful optimization algorithm for
Yuhang Ma   +5 more
doaj   +1 more source

MagmaFlow: A desktop platform for artificial intelligence‐driven expression analysis

open access: yesFEBS Open Bio, EarlyView.
MagmaFlow is a free, no‐code platform for gene expression analysis. It generates interactive volcano plots, links genes to literature, pathways, and diseases, prioritizes candidates using millions of publications, identifies affected biological processes, builds network diagrams, and exports publication‐ready figures and reports for macOS and Windows ...
Carlos E. Buss   +7 more
wiley   +1 more source

Aerodynamic Performance Enhancement of an Automobile Through Utilization of Cooling Ventilation

open access: yesInternational Journal of Automotive Engineering
Reducing aerodynamic drag is crucial to improve the efficiency of vehicles. In this study, the feasibility of releasing the cooling flow into wake region to enhance automobile’s aerodynamic drag performance was investigated.
Feiyi Chen   +5 more
doaj   +1 more source

A Streamlined Design of a High-Speed Coach for Fuel Savings and Reduction of Carbon Dioxide

open access: yesInternational Journal of Automotive Engineering, 2011
Numerous aerodynamic designs of high-speed coaches have been made to reduce aerodynamic drag for lower fuel consumption and to keep the driving stability of the vehicle on a highway.
Chul-Ho KIM
doaj   +1 more source

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