Results 11 to 20 of about 1,167 (185)

Investigation on heat exchanger arrangement in solar enhanced natural draft dry cooling towers under various crosswind conditions

open access: yesCase Studies in Thermal Engineering, 2021
Solar enhanced natural draft dry cooling tower (SENDDCT) is a novel heat rejection device for thermal power plant, which uses solar energy to reheat the air after the heat exchanger and therefore improves the ventilation of the tower for performance ...
Mengfei Xu   +8 more
doaj   +1 more source

The coupled vibration of train and bridge as high-speed trains meet in crosswind [PDF]

open access: yesRailway Sciences, 2022
Purpose – This paper aims to study the influence of aerodynamics force of trains passing each other on the dynamic response of vehicle bridge coupling system based on numerical simulation and multi-body dynamics and put forward the speed threshold for ...
Wenhua Guo, Xinmin Hong, Chunxia Chen
doaj   +1 more source

Optimization for Circulating Cooling Water Distribution of Indirect Dry Cooling System in a Thermal Power Plant under Crosswind Condition with Evolution Strategies Algorithm

open access: yesEnergies, 2021
Crosswind has an adverse impact on the performance of an indirect dry cooling system. In order to mitigate the adverse influence, this study redistributed the circulating cooling water among air-cooled heat exchanger sectors so that the performance of ...
Zhao Li, Huimin Wei, Tao Wu, Xiaoze Du
doaj   +1 more source

Influence of Marshalling Length on Aerodynamic Characteristics of Urban Emus under Crosswind [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
Urban electric multiple units (EMUs) is based on high-speed trains and metro vehicle technology. Their design speeds are generally from 160km/h to 200km/h, which mitigates the low operating speeds of metro vehicles. Traditional crosswind calculations for
H. Liang, Y. Sun, T. Li, J. Zhang
doaj   +1 more source

Caught in the Crosswinds

open access: yesIMF Working Papers, 2020
A case study approach is used to assess the multi-pronged policy response of seven small financially open economies with flexible exchange rate regimes to external shocks following the global financial crisis. FX intervention was frequently used— including during outflow episodes to prevent disorderly depreciation and preserve financial stability ...
Ghada Fayad, Helene Poirson Ward
openaire   +2 more sources

Numerical Study on the Influence Mechanism of Crosswind on Frozen Phenomena in a Direct Air-Cooled System

open access: yesEnergies, 2020
The frozen phenomenon is unfavorable for the direct air-cooled condensers (DACCs) in a very cold area. The effect of crosswind on frozen phenomena in DACCs at the representative 2 × 350 MW thermal power units was investigated numerically.
Wei Yuan   +5 more
doaj   +1 more source

Assessment of Crosswind Speed over the Runway Glide Path Using an Interpretable Local Cascade Ensemble Approach Aided by Wind Tunnel Experiments

open access: yesAtmosphere, 2023
The close proximity of crosswinds to airport runways presents great hazards to landing operations. As a result, an aircraft is susceptible to encountering a loss of control.
Afaq Khattak   +4 more
doaj   +1 more source

Aerodynamics of Bus Platooning under Crosswind: A Simulation Study using CFD

open access: yesAutomotive Experiences, 2021
The aerodynamic benefits of a vehicle in a platoon could be distracted by an imposed crosswind on it. The study aims to investigate the alteration of aerodynamic coefficient comprising drag force coefficient, lift force coefficient, side force ...
Aan Yudianto   +2 more
doaj   +1 more source

Simulation on Unsteady Crosswind Forces of a Moving Train in a Three-Dimensional Stochastic Wind Field

open access: yesApplied Sciences, 2022
Unsteady aerodynamic forces are significantly critical to the safety and stability of trains traveling in high winds. This paper describes a study into unsteady crosswind forces of a moving train subjected to a three-dimensional stochastic wind field ...
Zhiyong Yao   +3 more
doaj   +1 more source

Movement Models to Predict Low-Altitude Flight of Soaring Birds Using Look-Ahead Environmental Factors. [PDF]

open access: yesEcol Evol
Eagles see ahead. Now our model does too. By modeling how eagles respond to terrain and wind conditions in their line of sight, we can predict where they'll fly in the next 3 min with 3× better accuracy than current methods—protecting eagles while maximizing energy production.
Sandhu R   +9 more
europepmc   +2 more sources

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