Front Tracking
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. A Low-Cost Smart Surveillance System Applied to Vehicle License Plate Tracking
Abstract The growth of urban centers has a major impact on our lives and on our society, one of which is the increase in the vehicle fleet, which in turns is a major offender in increasing road congestion, pollution, accidents, theft of vehicles, among others. With a focus on minimizing problems with theft of vehicles in an urban environment this paper propo
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. Simulation of Ablation in a Sounding Rocket Thermal Protection System Via an Interface Tracking Method with Two Moving Fronts
ABSTRACT: In this work, an interface tracking method is employed to simulate the ablative process in the region near the stagnation point of the VSB-30 sounding rocket Thermal Protection System (TPS). The ablation model considers the presence of two-fronts, the char-melting and the pyrolysis fronts. The results for the proposed model are compared to the ones
J. Aerosp. Technol. Manag.. Publicado em: 2013-12
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3. Simulation of Ablation in a Composite Thermal Protection System via an Interface Tracking Method
Abstract: In this work, the two-dimensional computational simulation of the ablative process in a composite used in rocket thermal protection systems via an interface tracking method was presented. The ablative model considers the presence of two simultaneous moving fronts, the pyrolysis and char fronts. The results were compared with some experimental data,
J. Aerosp. Technol. Manag.. Publicado em: 2012-09
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4. Modelagem matemática de escoamentos bifásicos usando o Meto- Do Espectral de Fourier / Mathematics modeling of two-phase ows using spectral method of Fourier
A simulação numérica de escoamentos bifásicos requer alta acurácia para se obter maiores detalhes do escoamento. Além disso, busca-se baixo custo computacional, pois de modo geral, as metodologias necessitam de um elevado refinamento da malha ou possuem um grande estêncil de discretização, o que as torna onerosas. Portanto, o presente trabalho prop�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2011
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5. A numerical investigation of the resin flow front tracking applied to the RTM process
Resin Transfer Molding (RTM) is largely used for the manufacturing of high-quality composite components and the key stage during processing is the resin infiltration. The complete understanding of this phenomenon is of utmost importance for efficient mold construction and the fast production of high quality components. This paper investigates the resin flow
Materials Research. Publicado em: 12/08/2011
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6. Modelagem Matemática e Simulação Computacional de Escoamentos Bifásicos com a Presença de Surfactante Insolúvel / Mathematical Modeling and Computational Simulation of two-phase ows with Insoluble Surfactant
Quando se trata de escoamentos bifásicos, torna-se inevitável falar de surfactantes. Surfactantes são agentes ativos de superfície que podem estar presentes em sistemas, tanto na forma de impurezas quanto na forma de substâncias químicas adicionadas propositalmente _a misturas para controlar efeitos físicos interfaciais. Os surfactantes são amplament
Publicado em: 2010
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7. Superfícies de pontos dinâmicas / Dynamic point set surfaces
The study of the behaviour of fluids is an ancient field in natural sciences. Recently, engineering phenomena that were empirically studied started to be done with computacional aid. The Computational Fluid Dynamics (CFD) is the area of science that studies computational methods for computer simulation of fluid flow, and often is the most practical way, or t
Publicado em: 2009
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8. Precipitation forecast aided by weather radar for early warning system of urban floods / Previsão de chuva com auxílio de radar de tempo visando a um sistema de alerta antecipado de cheias em áreas urbanas
To reduce human and material losses during floods it is feasible to concisely study the rainfall forecast as the main part of an early warning system. The use of weather radar information, when linked to physically-based forecast models, can contribute for monitoring and forecasting of intense rainfall episodes. Thus, the rainfall forecast, based on using of
Publicado em: 2009
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9. Simulação de escoamento de fluidos em superfícies definidas por pontos não organizados / Fluid flow simulation in surfaces defined by non-organized points
Atualmente diversos produtos são fabricados por meio de injeção de polímeros, num processo denominado moldagem por injeção: material fundido é injetado em um molde no qual resfria e endurece. Contudo, ao contrário de outros processos de produção, a qualidade da peça criada por meio de moldagem por injeção não depende apenas do material e da sua
Publicado em: 2008
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10. Least squares and point-based surfaces: new perspectives and Applications / Minimos-quadrados e aproximação de superfície de pontos: novas perspectivas e aplicações
Surface reconstruction from unorganized points has been one of the most promising scientific research areas in Computer Graphics. In addition, it has been used successfully for the definition of fluid interface in numerical simulation of fluid flow. There are several reasons to that fact: for instance, considering Computer Graphics, we have the handling of o
Publicado em: 2008
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11. Detailed Two-Dimensional Numerical Analysis of Multiphase Flows / Análise numérica detalhada de escoamentos multifásicos bidimensionais
The mathematical modeling of multiphase flows involves the interaction between deformable and moving geometries with the fluid in which they are dispersed (immersed). This kind of interaction is present in many practical applications. A common approach to handle these problems is the so called Front-Tracking/Front-Capturing Hybrid Methods. This methodology c
Publicado em: 2007
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12. Detailed Two-Dimensional Numerical Analysis of Multiphase Flows / AnÃlise numÃrica detalhada de escoamentos multifÃsicos bidimensionais
The mathematical modeling of multiphase ows involves the interaction between deformable and moving geometries with the uid in which they are dispersed (immersed). This kind of interaction is present in many practical applications. A common approach to handle these problems is the so called Front-Tracking/Front-Capturing Hybrid Methods. This methodology consi
Publicado em: 2007