Results 1 to 10 of about 343,611 (255)

Study on Aerodynamic Drag Reduction at Tail of 400 km/h EMU with Air Suction-Blowing Combination

open access: yesMachines, 2023
In order to further reduce the aerodynamic drag of High-speed Electric Multiple Units (EMU), an active flow control drag reduction method combining air suction and blowing is proposed at the rear of the EMU train.
Wu Deng, Daqing Wu, Hongjiang Cui
exaly   +4 more sources

A Numerical Analysis of Active Flow Control Techniques for Aerodynamic Drag Reduction in the Square-Back Ahmed Model

open access: yesApplied Sciences, 2022
Aerodynamic drag reduction is required with new stringent constraints on pollutant emissions and fuel efficiency of ground vehicles. In this context, active flow control is a promising approach to achieve this target.
Thanh-Long Phan   +3 more
doaj   +2 more sources

Numerical Investigation of Aerodynamic Drag and Pressure Waves in Hyperloop Systems

open access: yesMathematics, 2020
Hyperloop is a new, alternative, very high-speed mode of transport wherein Hyperloop pods (or capsules) transport cargo and passengers at very high speeds in a near-vacuum tube. Such high-speed operations, however, cause a large aerodynamic drag.
Jaiyoung Ryu   +2 more
exaly   +2 more sources

Aerodynamic Drag Analysis of Autonomous Electric Vehicle Platoons

open access: yesEnergies, 2020
Vehicle platooning has been proposed as one of the potential technologies for intelligent transport systems to improve transportation and energy efficiency in urban cities.
Aditya Pathak, Aybike Ongel
exaly   +2 more sources

Research on aerodynamic drag reduction for 400 km/h high-speed trains

open access: yesAdvances in Wind Engineering
To improve the transportation efficiency, the trains are designed for higher operational speed. When the train speed increases, its aerodynamic drag grows dramatically and the operational energy consumption surges.
Hongkang Liu, Tiantian Wang
exaly   +3 more sources

An aerodynamic drag model for protein ions [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 1994
The energy losses of protein ions passing through a collision cell filled with inert gas have been modeled as the aerodynamic drag on a projectile at high Knudsen number. When applied to the energy loss data of Covey and Douglas (J. Am. Soc. Mass Spectrom.
D J Douglas
exaly   +3 more sources

Effect of blowing flow control and front geometry towards the reduction of aerodynamic drag on vehicle models [PDF]

open access: yesFME Transactions, 2019
This paper presents analyses of the effect of blowing flow control and variations on front geometry towards the reduction of aerodynamic drag on vehicle models.
Tarakka Rustan   +3 more
doaj   +2 more sources

Research on the impact of air-blowing on aerodynamic drag reduction and wake characteristics of a high-speed maglev train

open access: yesThe Physics of Fluids, 2023
The maglev train fills the speed gap between ground transportation and airplanes. However, the increasing train speed results in greater energy losses due to increased aerodynamic drag, impeding the green and sustainable development of high-speed ...
Zheng-Xin Che   +4 more
semanticscholar   +1 more source

Experimental and Numerical Investigation of the Aerodynamic Ventilation Drag of Heavy-Duty Vehicle Wheels

open access: yesFluids, 2023
Due to current EU regulations, constant-speed testing on test tracks is used for aerodynamic certification of heavy-duty vehicles (HDV). However, the aerodynamic development of HDVs is performed using wind tunnels and computational fluid dynamics (CFD ...
Carlos Peiró Frasquet   +3 more
doaj   +1 more source

Review on Flow Controls for Vehicles Aerodynamic Drag Reduction

open access: yesJournal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2023
Reducing aerodynamic drag in automobiles has been one of the focuses in automotive industry as it will increase vehicles performance and reduce power consumption which subsequently save the environment.
Rafiqi Daniel Ramadhan Mariaprakasam   +5 more
semanticscholar   +1 more source

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