Results 21 to 30 of about 1,167 (185)

Research on the horizontal curve's radius under coupling effects of uneven adhesion coefficient and crosswind

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2015
In order to study the effects of uneven adhesion coefficient and crosswind on alignment design indexes, a six-axle semi-trailer is selected as the typical vehicle model to investigate the effects of uneven adhesion coefficient caused by superelevation ...
Min Zhang   +3 more
doaj   +1 more source

An Ignored Wind Generates More Electricity: A Solar Updraft Tower to a Wind Solar Tower

open access: yesInternational Journal of Photoenergy, 2020
A solar updraft tower is one of the wind power generation plants which utilizes solar energy. The purpose of this study was to ascertain whether the tower was also able to utilize crosswind energy.
Koichi Watanabe   +3 more
doaj   +1 more source

Analysis of vehicle behavior under crosswind using air spring pressure

open access: yesNihon Kikai Gakkai ronbunshu, 2022
To clarify the behavior of railway vehicles under crosswind, a new method using the left-right balance of air spring pressure is presented in this paper.
Shigemitsu KITA   +2 more
doaj   +1 more source

Numerical Simulation on Temperature and Moisture Fields Around Cooling Towers Used in Mine Ventilation System

open access: yesFluids, 2022
For heat rejection, small air-cooling towers are widely used in mine ventilation systems. However, the thermal efficiency of the cooling towers can be significantly affected by their geometrical arrangement and crosswind conditions.
Maxim Zhelnin   +4 more
doaj   +1 more source

Some Effects of Crosswind on the Lateral Dynamics of a Bicycle

open access: yesProceedings, 2018
The bicycle, being unstable at low speed and marginally stable at high speed, is sensitive to lateral perturbations. One of the major lateral perturbations is crosswind, which can lead to accidents and fatalities.
A. L. Schwab   +2 more
doaj   +1 more source

Aerodynamic performance of traveling road vehicles on a single-level rail-cum-road bridge under crosswind and aerodynamic impact of traveling trains

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
Crosswind and train-induced wind are major factors influencing the aerodynamic performance of vehicles on single-level rail-cum-road bridges. Based on computational fluid dynamics (CFD) technology, this work developed a numerical model to discuss ...
Jiajun He   +3 more
doaj   +1 more source

Thermal Performance for Wet Cooling Tower with Different Layout Patterns of Fillings under Typical Crosswind Conditions

open access: yesEnergies, 2017
A thermal-state model experimental study was performed in lab to investigate the thermal performance of a wet cooling tower with different kinds of filling layout patterns under windless and 0.4 m/s crosswind conditions.
Ming Gao   +4 more
doaj   +1 more source

Research on the Uplift Characteristics of Pantographs of High-Speed Trains Under Crosswind Conditions

open access: yesApplied Sciences
Through the geometric relationships and force analysis of the main components of pantographs on high-speed trains, the coefficients of aerodynamic forces and lift transmission between the pantograph and main components under crosswind conditions were ...
Meng Zhao   +3 more
doaj   +1 more source

A Numerical Study on the Improving Techniques of the Cooling Performance of a Natural Draft Dry Cooling Tower under Crosswind

open access: yesChemical Engineering Transactions, 2015
Crosswind degrades the cooling performance of a natural draft dry cooling tower (NDDCT) by affecting the air flow field at the inlet of the heat exchanger bundle, incurring complex vortexes inside the tower shell, and shifting the flow direction at the ...
W. Wang   +5 more
doaj   +1 more source

Flight of the dragons: a global review of migration in Odonata

open access: yesBiological Reviews, EarlyView.
ABSTRACT Insects are the most abundant and ecologically important animal migrants. Yet, we know relatively little about the patterns and processes underlying insect migration. Dragonflies (Anisoptera) and damselflies (Zygoptera) comprise the ancient insect order Odonata, whose ancestors were the first organisms to fly on Earth.
Johanna S.U. Hedlund   +3 more
wiley   +1 more source

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