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Olga Ermakova, Nikita Rusakov, Evgeny Poplavsky, Daniil Sergeev and Yuliya Troitskaya
The intensity of tropical cyclones is highly dependent on air?sea enthalpy and momentum exchange. At extreme wind speeds, the values of the enthalpy, CK, and momentum, CD, exchange coefficients are characterized by high uncertainty. The present study aim...
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Evgeny Poplavsky, Alexandra Kuznetsova and Yuliya Troitskaya
This paper presents an analysis of a new method for retrieving the parameters of the atmospheric boundary layer in hurricanes. This method is based on the approximation of the upper parabolic part of the wind speed profile and the retrieval of the lower ...
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Jiangfeng Cheng, Xueqiang Liu and Feng Deng
When a Very-Low-Frequency (VLF) antenna is towed in a circular flightpath at a constant altitude, the spatial configuration of the antenna can become relatively stationary with the orbiting aircraft. Accordingly, a quasi-stationary model of the towed ant...
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Wayne Formosa, Tonio Sant, Claire De Marco Muscat-Fenech and Massimo Figari
Following the International Maritime Organization?s goal to reduce greenhouse gas emissions, the interest in the application of wind-assisted ship propulsion (WASP) in maritime transportation is on the rise. Although a variety of WASP systems exist, the ...
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Pramod Abichandani, Deepan Lobo, Meghna Muralidharan, Nathan Runk, William McIntyre, Donald Bucci and Hande Benson
This work demonstrates distributed motion planning for multi-rotor unmanned aerial vehicle in a windy outdoor environment. The motion planning is modeled as a receding horizon mixed integer nonlinear programming (RH-MINLP) problem. Each quadrotor solves ...
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Ivana Pobocíková, Mária Michalková, Zuzana Sedliacková and Daniela Jurá?ová
In the paper, we statistically analysed data on the average hourly wind speed obtained from the meteorological station Poprad (located at the Poprad-Tatry airport, the Pre?ov region, Northern Slovakia) for the period 2005?2021. High altitude and rough mo...
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Loris Simonassi, Gustavo Lopes and Sergio Lavagnoli
The influence of unsteady wakes incoming from the upstream stages is of high relevance in modern high-speed, low-pressure turbines (LPT) operating at transonic exit Mach numbers and low Reynolds numbers for their potential to trigger transition and influ...
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Jiawu Li, Jun Wang, Xue Zhao, Feng Wang and Yu Li
The wind parameter distribution law at a bridge midspan in a U-shaped valley has important influence on the wind strength of this bridges. In this paper, the wind characteristics were researched by computational fluid dynamics (CFD). The surface roughnes...
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Xinglu Xia, Dongli Ma, Liang Zhang, Xing?an Liu and Keran Cong
With the rapid development of vertical takeoff and landing (VTOL) aircraft, the blade design of a propeller suitable for VTOL aircraft with a wide range of operating conditions has become a challenging and popular task. This paper proposes a multi-object...
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Evgeny Poplavsky, Nikita Rusakov, Olga Ermakova, Daniil Sergeev and Yuliya Troitskaya
A method has been developed for the retrieval of the atmospheric boundary layer parameters in tropical cyclones, namely the dynamic speed, the wind speed at a 10 m height, and the roughness parameter. For the analysis, the wind speed profiles were obtain...
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