Results 11 to 20 of about 32,763 (309)
Drag Coefficient during Strong Typhoons [PDF]
Advances in Meteorology, 2013 Using data from wind towers during typhoons Hagupit and Nuri, drag coefficient was estimated. The relationship between drag coefficient and atmospheric stability was examined.
Binglan Wang, Lili Song, Wenchao Chen
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Influence of Porosity on Drag Coefficient of Perforated Road Signs
Applied Sciences, 2022 To ensure the structural stability of road signs against strong gusts of wind, perforated road signs with sign boards perforated at regular intervals have been adopted for use in urban road infrastructure. However, ASCE 7-22 standards do not consider the
Hongki Sung, Kyusoo Chong, Wonseok Chung
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Determination Of The Surface Drag Coefficient
Boundary-Layer Meteorology, 2001 This study examines the dependence of the surface drag coefficienton stability, wind speed, mesoscale modulation of the turbulent flux and method of calculation of the drag coefficient. Data sets over grassland, sparse grass, heather and two forest sites are analyzed.
Mahrt, L. +7 more
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Drag coefficient in urban trees
Trees, 2020 The drag force is frequently responsible for tree fall; however, its calculation depends on a rarely known parameter, namely, the drag coefficient. This paper reviews this topic. The pressure exerted by the wind on trees can generate large drag forces, which have been considered the most frequent causes for mechanical failure in trees.
Raquel Gonçalves +2 more
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Drag Area, Frontal Area and Drag Coefficient in Cross-Country Skiing Techniques
Proceedings, 2018 The aim of this study was to investigate the air drag, frontal area and coefficient of drag of cross-country skiing classical and free style techniques. One highly skilled cross-country skier performed skiing-like classical and free style techniques on a
Mats Ainegren, Patrik Jonsson
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Computational investigation on drag coefficient and pressure distribution of the truck with add-on
Ain Shams Engineering JournalThe current demand for reducing the drag coefficient represents one of the most significant challenges for all truck manufacturers. Fuel consumption can be improved via aerodynamic effects, which lower the vehicle’s drag coefficient.
M.S. Karthik +6 more
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Drag Coefficient of Porous and Permeable Microbial Granules
Environmental Science & Technology, 2008 Settling velocity of microbial aggregates, such as anaerobic and aerobic granules, in biological wastewater treatment systems is highly related to their drag coefficient. In this work a new approach, taking the porosity and the permeability into account, was established to evaluate the drag coefficient of porous and permeable microbial granules.
Mu, Yang, Ren, Ting-Ting, Yu, Han-Qing
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Drag coefficient for amphibious house
Urban Water Journal, 2017 AbstractRecently, flooding has become a serious issue and disaster in Malaysia. Therefore, it is crucial to search for a more effective flood mitigation approach in Malaysia. Amphibious house system is a new sustainable and flexible flood mitigation measure within a floating urbanization environment. Amphibious house has been designed based on buoyancy
Mohammad Ali Nekooie +2 more
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Numerical Study of Cylinder Drag Coefficient Reduction Using Passive Flow Control [PDF]
مهندسی مکانیک شریف, 2022 In this study, the cylinder drag coefficient is reduced by using passive flow control. Installing a flat plate in two heights and different longitudinal distances in upstream flow increases the upstream flow momentum of the cylinder, leading to the ...
S. sh. Sadeghi, N. Nabatian
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Review of drag coefficients on gas – liquid tower: the drag coefficient independent and dependent on bubble diameter in bubble column experiment [PDF]
Chemical Review and Letters, 2019 Drag coefficient independent on bubble diameter is required to ease design sieve trays or bubble column, through simulation of computational fluid dynamic.
Reza Kakulvand
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