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Stephen C. Medeiros
Mangroves are a natural feature that enhance the resilience of natural and built coastal environments worldwide. They mitigate the impacts of hurricanes by dissipating energy from storm surges and waves, as well as reducing wind speeds. To incorporate ma...
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Orhan Gülcan, Kadir Günaydin and Alican Çelik
The present study focuses on producibility and surface roughness characteristics of airfoil geometries and their effect on aerodynamic performance for different velocities, surface roughness values and angles of attack. Two different tray orientations (a...
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Difu Sun, Junqiang Song, Xiaoyong Li, Kaijun Ren and Hongze Leng
A wave state related sea surface roughness parameterization scheme that takes into account the impact of sea foam is proposed in this study. Using eight observational datasets, the performances of two most widely used wave state related parameterizations...
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Andrei Buzica, Lisa Debschütz, Florian Knoth and Christian Breitsamter
Diamond wing configurations for low signature vehicles have been studied in recent years. Yet, despite numerous research on highly swept, sharp edged wings, little research on aerodynamics of semi-slender wings with blunt leading-edges exists. This paper...
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Andrei Buzica, Lisa Debschütz, Florian Knoth and Christian Breitsamter
Diamond wing configurations for low signature vehicles have been studied in recent years. Yet, despite numerous research on highly swept, sharp edged wings, little research on aerodynamics of semi-slender wings with blunt leading-edges exists. This paper...
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Mingzhao Yu, Bingfang Wu, Hongwei Zeng, Qiang Xing and Weiwei Zhu
The aerodynamic roughness length (z0m) is a crucial parameter for reliably simulating turbulent exchanges between the land surface and the atmosphere. Due to the large number of input variables related to vegetation growth and aerodynamic conditions near...
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Qiang Xing, Bingfang Wu, Nana Yan, Mingzhao Yu and Weiwei Zhu
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Yu-Ting Wu and Fernando Porté-Agel
A numerical study of atmospheric turbulence effects on wind-turbine wakes is presented. Large-eddy simulations of neutrally-stratified atmospheric boundary layer flows through stand-alone wind turbines were performed over homogeneous flat surfaces with f...
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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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Umberto Rizza, Elisa Canepa, Antonio Ricchi, Davide Bonaldo, Sandro Carniel, Mauro Morichetti, Giorgio Passerini, Laura Santiloni, Franciano Scremin Puhales and Mario Marcello Miglietta
Occasionally, storms that share many features with tropical cyclones, including the presence of a quasi-circular “eye” a warm core and strong winds, are observed in the Mediterranean. Generally, they are known as Medicanes, or tropical-like c...
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Nicolás Ramírez,Afshin Afshari,Julián García
Pág. 53 - 56
Characterizing the urban form of cities from an aerodynamic point of view is essential to forecast pollutant dispersion, to implement and understand natural ventilation strategies or to enhance outdoor thermal comfort and pedestrian wind environment, to ...
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Yat-Kiu Ho and Chun-Ho Liu
Street-level ventilation is often weakened by the surrounding high-rise buildings. A thorough understanding of the flows and turbulence over urban areas assists in improving urban air quality as well as effectuating environmental management. In this pape...
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Jasem Alqallaf and Joao A. Teixeira
Degradation of compressors is a common concern for operators of gas turbine engines (GTEs). Surface roughness, due to erosion or fouling, is considered one of the major factors of the degradation phenomenon in compressors that can negatively affect the d...
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