Atmospheric Stability Parameters
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Comparison of In-Flight Measured and Computed Aeroelastic Damping: Modal Identification Procedures and Modeling Approaches
ABSTRACT The Operational Modal Analysis technique is a methodology very often applied for the identification of dynamic systems when the input signal is unknown. The applied methodology is based on a technique to estimate the Frequency Response Functions and extract the modal parameters using only the structural dynamic response data, without assuming the kn
J. Aerosp. Technol. Manag.. Publicado em: 2016-06
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2. An Analytic Model for Dispersion of Rocket Exhaust Clouds: Specifications and Analysis in Different Atmospheric Stability Conditions
ABSTRACT: This paper brings the first results concerning a new analytic model to evaluate atmospheric dispersion in rocket launch scenarios, namely Generalized Integral Laplace Transform Technique for Rocket effluent dispersion model. The model is constituted by three different modules, being two pre-processors (micrometeorological parameters and deposition
J. Aerosp. Technol. Manag.. Publicado em: 2015-09
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3. Spatial and temporal wind analysis in Alagoas state. / Análise espacial e temporal do vento no estado de Alagoas
Este trabalho teve o objetivo de caracterizar os padrões de vento no Estado de Alagoas, avaliando se existem condições propicias para a geração de energia elétrica através de aerogeradores no Estado, e relacionar os padrões de vento com parâmetros locais, observando o comportamento da estabilidade atmosférica através de diferentes métodos. Procur
Publicado em: 2009
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4. Avaliação de modelos fotoquímicos de qualidade do ar e estudo das circulações atmosféricas nos processos de dispersão de poluentes / Evaluation of air quality photochemical models and atmospheric circulations in the pollution dispersion processes.
Throughout numerical simulations and near to surface measurements of pollutants concentrations, in this work some meteorological situations of relevance for high ozone concentrations episodes over the Metropolitan Area of Sao Paulo (MASP) were studied., between 1999 and 2006. Firstly, two photochemical models, CIT and SPM-BRAMS, were evaluated in the sense o
Publicado em: 2008
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5. STUDY OF TURBULENT DIFUSION EMPLOYING LAGRANGIAN STOCHASTIC MODELS / ESTUDO DA DIFUSÃO TURBULENTA EMPREGANDO MODELOS ESTOCÁSTICOS LAGRANGEANOS
In this work, the Lagrangian stochastic particle model LAMBDA is utilized to simulate the dispersion and the transport of contaminants under different atmospheric conditions. The analysis employs three different field experiments of atmospheric diffusion: the Copenhagen experiment, which was accomplished in unstable conditions, the Prairie Grass experiment i
Publicado em: 2007
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6. Fenômenos de instabilidade do arco na soldagem GMAW com gases de baixo potencial de oxidação
The arc welding process with continuous wire and gas protection (GMAW) is currently one of the most important metal joining process. This process has passed through a constant evolution with the introduction of power supplies with electronic control, and the use of techniques to control metal transfer, its operational stability and weld bead formation. Moreo
Publicado em: 2006
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7. Desenvolvimento do processo combinado de desidratação osmotica-fritura para obtenção de chips de manga. / Development of the agreed process of osmotic dehydration - fryinf for attainment of sleeve Chips.
The development of new products using national raw materials is of considerable importance to the national economy, adding value to the product and decreasing surplus production, resulting in increasingly smaller losses. Throughout the World, the mango stands out amongst the tropical fruits, being a cheap raw material, produced in abundance in this country,
Publicado em: 2005
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8. UM MODELO EULERIANO DE DISPERSÃO DE CONTAMINANTES APLICADO EM DIFERENTES CONDIÇÕES DE ESTABILIDADE ATMOSFÉRICA
This work describes a model for contaminant dispersion under different atmospheric stability conditions. It can be used to simulate the concentration of contaminants released from sources located at different heights in the PBL. Eddy diffusivities are derived for a convective and mechanical turbulence. These eddy diffusivities are introduced into an Eulerian
Publicado em: 2004