Results 1 to 10 of about 3,085,452 (343)
Pile Drag Load and Downdrag in a Liquefaction Event [PDF]
Journal of Geotechnical and Geoenvironmental Engineering, 2008 Sandy soils may undergo compression during liquefaction. A review of published design manuals, including the 2004 AASHTO LRFD Bridge Design Specifications, indicates that some recommendations for pile design may not represent the pile response in a manner consistent with the actual axial response of the pile during liquefaction.
Bengt H. Fellenius, Timothy C. Siegel
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Iterative Frequency-Domain Response of Floating Offshore Wind Turbines with Parametric Drag
Journal of Marine Science and Engineering, 2018 Methods for coupled aero-hydro-servo-elastic time-domain simulations of Floating Offshore Wind Turbines (FOWTs) have been successfully developed. One of the present challenges is a realistic approximation of the viscous drag of the wetted members of the ...
Frank Lemmer, Wei Yu, Po Wen Cheng
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Drag reduction in open channel flow by aeration and suspended load [PDF]
Journal of Hydraulic Research, 1994 In supercritical open channel flows, air is entrained at the free surface. Such air-water flows, called selfaerated flows, exhibit smaller friction losses than non-aerated flows. New data on drag reduction in selfaerated flows are presented. It is shown that the drag reduction process is linked with the presence of an air concentration boundary layer ...
H. Chanson
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Effect of blowing flow control and front geometry towards the reduction of aerodynamic drag on vehicle models [PDF]
FME 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
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Investigating the Reliability of Negative Skin Friction on Composite Piles [PDF]
Civil Engineering Infrastructures Journal, 2021 In this study, the impact of Negative Skin Friction (NSF) on composite piles concerning different variables such as different pile sections, the amount of concrete and steel consumption, and various interaction coefficients of the pile-soil system in ...
Mohammad Mahdi Hajitaheriha +3 more
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International Journal of Technology, 2016 In recent developments in the area of thermofluid technologies, active flow control has emerged as an interesting topic of research. One of the latest methods, which will be discussed in this paper, is the application of a plasma actuator.
James Julian +4 more
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Numerical Simulation on Inflation Process of Cruciform Drag Parachute [PDF]
Hangkong bingqi, 2021 In order to study the opening characteristics of the cruciform drag parachute, the ALE (Arbitrary Lagrange-Euler) fluid-solid coupling method is used to numerically simulate the inflation process of the cross drag parachute.
Lian Hongbo, Yu Dongming, Zhou Hao, Zhao Yingtao
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Lubricants, 2023 Gas foil thrust bearings (GFTBs) have been successfully used to support the axial load of oil-free microturbomachinery with low drag friction due to the low viscosity of gas or air used as a bearing lubricant.
Sung Ho Hwang +2 more
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Scientific Reports, 2023 A novel method aimed at evaluating the active drag profile during front-crawl swimming is proposed. Fourteen full trials were conducted with each trial using a stationary load cell set-up and a commercial resistance trainer to record the tension force in
A. Haskins +5 more
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Study on Reducing Towing Drag by Varying the Shape and Arrangement of Floats and Gears
Applied Sciences, 2022 Many studies have been conducted with the aim of reducing fuel consumption by the fishing industry. We examined whether drag can be reduced by changing the arrangement of gears without requiring the development of new parts for the conventional float and
Jung-Mo Jung +2 more
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