Generation Of Meshes
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Estrutura de dados Mate Face e aplicações em geração e movimento de malhas / The Mate Face data structure and applications in mesh generation and movement
Topological data Structures (DS) oer several advantages when performing a deformation on a mesh. These DSs allow movement throughout the mesh without modifying its topology, are relatively simple to implement, and there is always the possibility of merging it to simulation/deformation cycle on a completely automatic and ecient form. The main goal of this wor
Publicado em: 2009
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2. USING POINT BASED TECHNIQUES FOR SEISMIC HORIZONS VISUALIZATION / USO DE TÉCNICAS BASEADAS EM PONTOS PARA VISUALIZAÇÃO DE HORIZONTES SÍSMICOS
Seismic horizon visualization stands as an important knowledge area used to support exploration on the oil industry. Different techniques currently employed to render this kind of surfaces are usually based on polygonal meshes generation, which benefits from graphics boards optimization on drawing triangles. This work is an evaluation of Point Based renderin
Publicado em: 2009
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3. FAULT MESHING GENERATION IN SEISMIC DATA BY COMPETITIVE LEARNING / GERAÇÃO DE MALHAS DE FALHAS EM DADOS SÍSMICOS POR APRENDIZADO COMPETITIVO
Manual fault mapping from 3D seismic data is a time-consuming task. A plethora of seismic attributes has been proposed to enhance the discontinuity measures associated with faults. However, faults viewed through these attributes appear more like trends than well-defined, continuous surfaces, posing obstacles to the automation of the fault modeling process. T
Publicado em: 2008
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4. Ferramentas computacionais para a anÃlise de dutos com defeitos de corrosÃo
Pipelines are one of the safest means for transport of petroleum and gas, and the one with the smallest risk to the environment. They also possess high efficiency and productivity. In spite of their exceptional capabilities, they are also a great source of concern of the petroleum companies, since they can be subjected to several types defects, in particular
Publicado em: 2008
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5. AnÃlise de escoamentos compressÃveis nÃo-viscosos em trÃs dimensÃes utilizando o mÃtodo dos elementos finitos por aresta
This work has as its main goal the development of a computational tool for numerical simulation of compressible fluid flow problems for three dimensions, using as starting point the computational tool developed by LYRA (1994) that dealt with fluid flow problems in two dimensional domain. For the development of this tool, a space discretization was adopted us
Publicado em: 2008
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6. Esquema numérico com reconstrução mínimos quadrados de alta ordem em malhas não-estruturadas para a formulação euleriana do transporte de partículas / Numerical scheme with high order least square reconstruction on unstructured grid to eulerian formulation of the particle transport
The particle transport study has a fundamental importance in diverse research area like in the icing accretion on an aircraft because that can affect its sustentation and stability. The concern is so big that many researches have been carried through, resulting in computational codes like the LEWICE in the United States, TRAJICE in the United Kingdom, ONERA
Publicado em: 2008
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7. Grid generation and adaptation by functionals
Accuracy of a simulation is strongly depend on the grid quality. Here, quality means orthogonality at the boundaries and quasi-orthogonality within the critical regions, smoothness, bounded aspect ratios, solution adaptive behavior, etc. We review various functionals for generating high quality structured quadrilateral meshes in two dimensional domains. Anal
Computational & Applied Mathematics. Publicado em: 2007
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8. GEOMETRIC AND NUMERICAL ADAPTATIVITY OF 2D AND 3D FINITE ELEMENT MESHES / ADAPTATIVIDADE GEOMÉTRICA E NUMÉRICA NA GERAÇÃO DE MALHAS DE ELEMENTOS FINITOS EM 2D E 3D
Este trabalho apresenta uma metodologia para geração de malhas adaptativas de elementos finitos 2D e 3D usando modeladores geométricos com multi-regiões e superfícies paramétricas. A estratégia adaptativa adotada é fundamentada no refinamento independente das curvas, superfícies e sólidos. Inicialmente as curvas são refinadas, no seu espaço param
Publicado em: 2007
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9. Desenvolvimento de uma interface gráfica para o solver fluids 3D de dinâmica dos fluidos computacional / Development of a graphical interface for solver of computational fluid dynamics, fluids 3d
O Laboratório de Transferência de Calor e Massa e Dinâmica dos Fluidos - LTMC/FEMEC/UFU tem desenvolvido diversos trabalhos para simulações e análise computacional da dinâmica dos fluidos, porém com etapas providas por softwares proprietários, tornando onerosa a utilização de tais soluções. Além disso, a ferramenta atualmente funcional existent
Publicado em: 2007
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10. Desenvolvimento de uma interface grÃfica para o solver fluids 3D de dinÃmica dos fluidos computacional / Development of a graphical interface for solver of computational fluid dynamics, fluids 3d
O LaboratÃrio de TransferÃncia de Calor e Massa e DinÃmica dos Fluidos - LTMC/FEMEC/UFU tem desenvolvido diversos trabalhos para simulaÃÃes e anÃlise computacional da dinÃmica dos fluidos, porÃm com etapas providas por softwares proprietÃrios, tornando onerosa a utilizaÃÃo de tais soluÃÃes. AlÃm disso, a ferramenta atualmente funcional existent
Publicado em: 2007
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11. A computational methodology for automatic two-dimensional anisotropic mesh generation and adaptation
This paper describes a versatile computational program for automatic two-dimensional mesh generation and remeshing adaptation of triangular, quadrilateral and mixed meshes. The system is flexible to be incorporated into an adaptive global or local remeshing procedure and for generating both, iso and anisotropic meshes. The main contribution of this work is t
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-12
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12. Simulação numérica para difusão anisotrópica / Numerical simulation to anisotropic diffusion
The present work build a computational model using the finite volumes method for unstructured meshes, with the purpose of calculating the hydraulic load in a porous medium, considering it material non - homogeneous and anisotropic. The Anisotropy is a characteristic of many materials found in the nature and it depends on the property studied in this material
Publicado em: 2006