Relevant bibliographies by topics / Surface roughness and wind gustiness etc

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Academic literature on the topic 'Surface roughness and wind gustiness etc'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Surface roughness and wind gustiness etc"

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Onundi, L.O, M.B Oumarou, and Otuagbu Philip. "CLASSIFICATION OF NIGERIA WIND ISOPLETHS FOR STRUCTURAL PURPOSES." Continental J. Engineering Sciences 4 (July 22, 2009): 48–55. https://doi.org/10.5281/zenodo.833703.

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The paper reviewed the useful details of the Soboyejo Isopleths and the Nigerian Meteorological Agency wind Documentation map produced for Nigeria. Discrepancies were observed in the interpretations given to the data produced by the Agency. The researchers used a mathematical relationship between, the Soboyejo’s and the Nigerian Meteorological Agency data to produce results which correspond to 100 year mean recurrent interval. Gumbel Type I distribution model of yearly highest gust was used to analyse the data for some scattered points; while the Microsoft Office Excel was used as the tool for
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Yahaya, S., J. P. Frangi, and D. C. Richard. "Turbulent characteristics of a semiarid atmospheric surface layer from cup anemometers – effects of soil tillage treatment (Northern Spain)." Annales Geophysicae 21, no. 10 (2003): 2119–31. http://dx.doi.org/10.5194/angeo-21-2119-2003.

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Abstract. This paper deals with the characteristics of turbulent flow over two agricultural plots with various tillage treatments in a fallow, semiarid area (Central Aragon, Spain). The main dynamic characteristics of the Atmospheric Surface Layer (ASL) measured over the experimental site (friction velocity, roughness length, etc.), and energy budget, have been presented previously (Frangi and Richard, 2000). The current study is based on experimental measurements performed with cup anemometers located in the vicinity of the ground at 5 different levels (from 0.25 to 4 m) and sampled at 1 Hz.
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Memon, Halar, Jie Wang, and Xianghui Hou. "Interdependence of Surface Roughness on Icephobic Performance: A Review." Materials 16, no. 13 (2023): 4607. http://dx.doi.org/10.3390/ma16134607.

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Ice protection techniques have attracted significant interest, notably in aerospace and wind energy applications. However, the current solutions are mostly costly and inconvenient due to energy-intensive and environmental concerns. One of the appealing strategies is the use of passive icephobicity, in the form of coatings, which is induced by means of several material strategies, such as hydrophobicity, surface texturing, surface elasticity, and the physical infusion of ice-depressing liquids, etc. In this review, surface-roughness-related icephobicity is critically discussed to understand the
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Snaiki, Reda, and Teng Wu. "Knowledge-Enhanced Deep Learning for Simulation of Extratropical Cyclone Wind Risk." Atmosphere 13, no. 5 (2022): 757. http://dx.doi.org/10.3390/atmos13050757.

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Boundary-layer wind associated with extratropical cyclones (ETCs) is an essential element for posing serious threats to the urban centers of eastern North America. Using a similar methodology for tropical cyclone (TC) wind risk (i.e., hurricane tracking approach), the ETC wind risk can be accordingly simulated. However, accurate and efficient assessment of the wind field inside the ETC is currently not available. To this end, a knowledge-enhanced deep learning (KEDL) is developed in this study to estimate the ETC boundary-layer winds over eastern North America. Both physics-based equations and
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Yuge Liu, Yuge Liu, Ying Huang Yuge Liu, and Zhiyou Yang Ying Huang. "An Attuned Data Extraction Model for Maximizing Ocean Surface Wind Prediction Using Scatterometry." 電腦學刊 35, no. 4 (2024): 011–30. http://dx.doi.org/10.53106/199115992024083504002.

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<p>Scatterometers equipped with C-bands are deployed along the coast surface for measuring ocean and sea surface winds and roughness. Deployed in low orbital satellites, the electromagnetic signals transmitted are scattered at the ocean’s surface from which the intensity and wind direction are detected. Wind intensity is impacted by different features such as salinity, scattering index, obstacles, etc., resulting in erroneous predictions. This article introduces an Attuned Data Extraction Method (ADEM) for detecting precise wind intensity and direction. The fore-mentioned error
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Frangi, J. P., and D. C. Richard. "The WELSONS experiment: overview and presentation of first results on the surface atmospheric boundary-layer in semiarid Spain." Annales Geophysicae 18, no. 3 (2000): 365–84. http://dx.doi.org/10.1007/s00585-000-0365-7.

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Abstract. This study presents the preliminary results of the local energy budget and dynamic characteristics of the surface atmospheric boundary-layer (SBL) during the WELSONS (wind erosion and losses of soil nutrients in semiarid Spain) experiment. Some Mediterranean regions suffer land degradation by wind erosion as a consequence of their particular soil and climate conditions and inappropriate agricultural practice. In Spain, where land degradation by water erosion is well known, the lack of field studies to quantify soils losses by wind erosion resulted in the European Community organizing
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ZHAO, Shuaike, and Hua SU. "Lubrication analysis of low-speed and heavy-load journal bearing in wind turbine gearbox under different operating conditions." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 41, no. 5 (2023): 978–86. http://dx.doi.org/10.1051/jnwpu/20234150978.

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Aiming at the working conditions of frequent starting, low speed and heavy load, and yaw tilting of radial sliding bearings in wind turbine gearboxes, a numerical analysis model of the lubrication performance coupled with instantaneous starting and operating conditions of radial sliding bearings was established based on the average Reynolds equation, and the start-up phase was analyzed. The motion trajectory of the shaft diameter and the axis center was used to obtain the change state of the bearing film thickness from the start-up to the stable stage; the influences of the comprehensive surfa
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Meyer Forsting, AR, AS Olsen, M. Gaunaa, et al. "A spectral model generalising the surface perturbations from leading edge erosion and its application in CFD." Journal of Physics: Conference Series 2265, no. 3 (2022): 032036. http://dx.doi.org/10.1088/1742-6596/2265/3/032036.

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Abstract Blade leading edge erosion (LEE) is a major cost driver in the wind energy sector. LEE is caused by the environmental conditions under which the blades operate. The impact energy of the airborne particles striking the leading edge determines the speed of erosion, thus LEE severity grows towards the blade tip and with a turbine’s tip speed. Currently there is no established method for assessing the aerodynamic impact of LEE, either numerically or experimentally caused by a lack of erosion topological data and its stochastic nature. Whilst previous studies investigated specific realisat
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Kumar, Rahul, Mansoureh Rezapourian, Ramin Rahmani, Himanshu S. Maurya, Nikhil Kamboj, and Irina Hussainova. "Bioinspired and Multifunctional Tribological Materials for Sliding, Erosive, Machining, and Energy-Absorbing Conditions: A Review." Biomimetics 9, no. 4 (2024): 209. http://dx.doi.org/10.3390/biomimetics9040209.

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Friction, wear, and the consequent energy dissipation pose significant challenges in systems with moving components, spanning various domains, including nanoelectromechanical systems (NEMS/MEMS) and bio-MEMS (microrobots), hip prostheses (biomaterials), offshore wind and hydro turbines, space vehicles, solar mirrors for photovoltaics, triboelectric generators, etc. Nature-inspired bionic surfaces offer valuable examples of effective texturing strategies, encompassing various geometric and topological approaches tailored to mitigate frictional effects and related functionalities in various scen
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Nagayach, Neeraj Kumar, Kanishk Sharma, Yogesh Agrawal, and Anil Singh Yadav. "Revisiting the Effect of Rib Roughness on the Performance of Solar Air Heater." E3S Web of Conferences 430 (2023): 01264. http://dx.doi.org/10.1051/e3sconf/202343001264.

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The energy collected from various renewable resources, such as sunlight, geothermal warmth, wind, and water, is referred to as renewable power. The sun is the ultimate source of vitality. Solar radiation vitality can be utilized in many functions, such as heating buildings and dusty foliage crops, dying chicken, wood taste, and treating modern elements. All the energy patterns in nature asking them are the origin of the sun. The solar air heater (SAH) is very common along with commonly applied sun-oriented heating apparatus. Perhaps, SAH is utilized for a wide range of applications, from resid
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Books on the topic "Surface roughness and wind gustiness etc"

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Chan, Johnny C. L. Physical Mechanisms Responsible for Track Changes and Rainfall Distributions Associated with Tropical Cyclone Landfall. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780190676889.013.16.

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As a tropical cyclone approaches land, its interaction with the characteristics of the land (surface roughness, topography, moisture availability, etc.) will lead to changes in its track as well as the rainfall and wind distributions near its landfall location. Accurate predictions of such changes are important in issuing warnings and disaster preparedness. In this chapter, the basic physical mechanisms that cause changes in the track and rainfall distributions when a tropical cyclone is about to make landfall are presented. These mechanisms are derived based on studies from both observations
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Chan, Johnny C. L. Physical Mechanisms Responsible for Track Changes and Rainfall Distributions Associated with Tropical Cyclone Landfall. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780190699420.013.16.

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As a tropical cyclone approaches land, its interaction with the characteristics of the land (surface roughness, topography, moisture availability, etc.) will lead to changes in its track as well as the rainfall and wind distributions near its landfall location. Accurate predictions of such changes are important in issuing warnings and disaster preparedness. In this chapter, the basic physical mechanisms that cause changes in the track and rainfall distributions when a tropical cyclone is about to make landfall are presented. These mechanisms are derived based on studies from both observations
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Conference papers on the topic "Surface roughness and wind gustiness etc"

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Brzek, Brian, Rau´l Bayoa´n Cal, Gunnar Johansson, and Luciano Castillo. "LDA Measurements in Rough Surface ZPG Turbulent Boundary layers." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98508.

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A new set of experiments have been performed in order to study the effects of the upstream conditions and the surface roughness on a zero pressure gradient turbulent boundary layer. In order to properly capture the x-dependence of the single point statistics, consecutive measurements of 11 streamwise locations were performed. These 2-D Laser Doppler Anemometry (LDA) measurements enable us to use the full boundary layer equations in order to calculate the skin friction and determine the boundary layer development which is not possible in the majority of experiments on rough surfaces. It will be
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Hossam El-Din, Ahmed, and Aya Diab. "A Preliminary Study of the Blade Erosion for a Wind Turbine Operating in a Dusty Environment." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-57010.

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The process of surface erosion due to particle collision has been the focus of a number of investigations with regards to gas turbine engines, aircraft, reentry missiles, pipelines carrying coal slurry, etc. Recently, increased interest in wind energy by countries in the Saharan regions of the Middle East and North Africa (MENA) brings about some concern about leading edge erosion of wind turbines operating under such dusty conditions. Leading edge erosion can have a detrimental impact on the extracted energy as it changes the blade surface roughness causing premature/unpredictable separation.
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Reports on the topic "Surface roughness and wind gustiness etc"

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Miles, John W. Wave Propagation, Surface-Roughness Parameterization and Wind Gustiness. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada622502.

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Michaels, Michelle, Theodore Letcher, Sandra LeGrand, Nicholas Webb, and Justin Putnam. Implementation of an albedo-based drag partition into the WRF-Chem v4.1 AFWA dust emission module. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42782.

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Employing numerical prediction models can be a powerful tool for forecasting air quality and visibility hazards related to dust events. However, these numerical models are sensitive to surface conditions. Roughness features (e.g., rocks, vegetation, furrows, etc.) that shelter or attenuate wind flow over the soil surface affect the magnitude and spatial distribution of dust emission. To aide in simulating the emission phase of dust transport, we used a previously published albedo-based drag partition parameterization to better represent the component of wind friction speed affecting the immedi
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LeGrand, Sandra, Theodore Letcher, Gregory Okin, et al. Application of a satellite-retrieved sheltering parameterization (v1.0) for dust event simulation with WRF-Chem v4.1. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47116.

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Employing numerical prediction models can be a powerful tool for forecasting air quality and visibility hazards related to dust events. However, these numerical models are sensitive to surface conditions. Roughness features (e.g., rocks, vegetation, furrows, etc.) that shelter or attenuate wind flow over the soil surface affect the magnitude and spatial distribution of dust emission. To aide in simulating the emission phase of dust transport, we used a previously published albedo-based drag partition parameterization to better represent the component of wind friction speed affecting the immedi
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