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20 results for “Wind Flow”
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Research ArticleOpen accessIn the keywordsIdentification of Flutter Derivatives of Bridge Decks in Wind Tunnel Test by Stochastic Subspace IdentificationT. Janesupasaeree, V. BoonyapinyoProblem statement: Flutter derivatives are the essential parameters in the estimations of the flutter critical wind velocity and the responses of long-span cable supported bridges. These derivatives can be experimentally estimated from wind tunnel test results. Generally, wind tunnel test methods can be divided into free decay test and buffeting test. Compared with the free decay method, the buffeting test … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 8,133 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEvaluation of Gaussian Plume Model against CFD Simulations through the Estimation of CO and NO Concentrations in an Urban AreaMahmoud BadyDispersion of air pollutants, Carbon monoxide (CO) and Nitrogen oxide (NO), due to three point sources and a high-density traffic road in an urban area located near the center of Tokyo, Japan was studied using two different approaches. The first is an analytical approach using Gaussian Plume Model (GPM) while the second is a numerical approach using Computational Fluid Dynamics … …American Journal of Environmental Sciences, Vol. 13, Issue 2 · 12 Apr 2017 · 7,907 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPower Quality Analysis in 6 MW Wind Turbine Using Static Synchronous CompensatorR. Valarmathi, A. ChilambuchelvanProblem statement: An inherent problem with wind turbine power generation systems is the low power quality due to intermittent power generation in these systems. This not only affects the power generation but also the grid it is connected to. Approach: In this study a configuration consisting of a 6MW Wind Farm based on conventional Fixed Speed Induction Generator is analyzed. … …American Journal of Applied Sciences, Vol. 9, Issue 1 · 23 Nov 2011 · 7,232 accessesView PDFCite
Research ArticleOpen accessIn the abstractClimate-Driven Productivity Responses and Implications for Genetic Adaptation and Breeding of Boreal Trees in KazakhstanZhadyra Baigazakova, Kuralay Mazarzhanova, Asset Satayev et al.Kazakhstan’s boreal and forest-steppe forests form the southern ecotonal edge of the West Siberian taiga, where relatively small changes in heat and moisture can trigger disproportionate impacts on tree growth, mortality, and regeneration. Although forests cover only ~4% of Kazakhstan, they provide critical ecosystem services: stabilizing hydrological regimes, buffering microclimates, protecting agricultural lands from wind and water erosion, and supporting … …OnLine Journal of Biological Sciences, Vol. 26, Issue 3 · 10 Aug 2026 · 709 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Hydrodynamic Conditions on Algal Organism GrowthBingxin Zhong, Zhifu Wang, Weihua Feng, Baoxing HuangThe growth of algal organisms is influenced by hydrodynamics, making it a crucial aspect of algal biology. We summarize recent studies on the impact of hydrodynamics on algal growth, with a specific focus on current velocity. In the past, extensive attention has been paid to the direct effects of impact factors on algal blooms and there is still a certain … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 3 · 9 Sep 2024 · 4,932 accessesView PDFCite
Research ArticleOpen accessIn the abstractTransverse Velocity, Transverse Boundary Shear Stress and Flow Deviation in Meandering Open ChannelsYoussef Ismail HafezThis study presents a novel approach for characterizing the mechanics of flow in mildly meandering open channels, specifically focusing on the development of a new vertical distribution equation for transverse velocity. Unlike existing equations in the literature that rely on complex logarithmic or integral forms or infinite series forms, which are impractical for hydraulic engineers, the proposed equation employs ordinary … …American Journal of Environmental Sciences, Vol. 20, Issue 1 · 25 Jul 2024 · 5,058 accessesView PDFCite
Research ArticleOpen accessIn the abstractRole of Clothing Insulation for Thermal Comfort: A Numerical Study using Bio-Heat Transfer ModelKabita Luitel, Dil Bahadur Gurung, Harihar Khanal, Kedar Nath UpretyClothing plays a major role in protecting the human body from cold and hot environment by working as an insulator. The physical factors such as conduction, convection, radiation, evaporation and the physiological factors such as blood flow and metabolism within the body together with clothing system help to maintain human thermal comfort and the human thermoregulatory system. On the other … …Journal of Mathematics and Statistics, Vol. 16, Issue 1 · 24 Dec 2020 · 8,032 accessesView PDFCite
Research ArticleOpen accessIn the abstractSmart Retrofit Solutions of Buildings toward a Low Carbon WorldErdem Cuce, Pinar Mert CuceIn this short communication, energy-efficient, eco-friendly and low-cost solutions for existing buildings are considered in a holistic manner toward low/zero carbon building concept of near future. Buildings are still responsible for about 40% of total primary energy consumption in the world, hence decisive measures need to be taken promptly due to growing significance of environmental issues driven by fossil fuel … …Energy Research Journal, Vol. 9, Issue 1 · 29 Aug 2018 · 7,169 accessesView PDFCite
Review ArticleOpen accessIn the abstractNew Researches Examines the Wing Shapes to Reduce Vortex and WakeNicolae Petrescu, Raffaella Aversa, Antonio Apicella, Florian Ion Tiberiu PetrescuIt is common to see clouds in the form of the sky, known as contrails, which are behind the engines of a reaction plan. What is not always visible is a wind whirl that comes out of the top of each wing - like two small horizontal tornadoes - leaving behind a turbulent awakening behind the vehicle. Awakening is a … …Journal of Aircraft and Spacecraft Technology, Vol. 2, Issue 1 · 19 Jun 2018 · 7,416 accessesView PDFCite
Research ArticleOpen accessIn the abstractVirtual Assessment of air Pollution Dispersion from Anthropogenic Sudden ExplosionMarvel Lola Akinyemi, Moses Eterigho Emetere, Mojisola Rachel UsikaluThe control of air pollutants from anthropogenic sources seems almost impossible due to numerous influencing factors present in the atmosphere. In this study, we carried out a virtual mathematical experimentation using Math CAD, Mat lab and analytical approximation to estimate the dimensional impact of initial pollutant plume cloud from a sudden volcanic blast and the dynamics of its wind field. … …American Journal of Environmental Sciences, Vol. 12, Issue 2 · 9 Apr 2016 · 7,157 accessesView PDFCite