Simulation Meshes
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. Mesh reinforcement in masonry mortar coatings: a systematic literature review
Abstract Mortar coatings have a major influence on a building’s aesthetics, valorization, and habitability, with significant effects on the mechanical behavior of masonry walls. Multiple types of meshes can be embedded in plaster to enhance both masonry and coating’s mechanical behavior, restrain crack formation, enhance the bonding between layers, and i
Cerâmica. Publicado em: 2023
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2. Finite Element Modeling and Experimental Verification of Nitriding Process in S30C Steel
A mathematical model has been developed to simulate the nitriding process of plain carbon steel, considering the simultaneous diffusion of nitrogen in different iron-nitrogen (Fe-N) phases and the precipitation dynamics of γ' and ε iron-nitride. The model can predict the distribution of nitrogen concentration, volume fraction of Fe-N phases and hardness. F
Mat. Res.. Publicado em: 16/02/2017
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3. AN EOS-BASED NUMERICAL SIMULATION OF THERMAL RECOVERY PROCESS USING UNSTRUCTURED MESHES
Abstract In the past thirty years, the development of compositional reservoir simulators using an equation of state (EOS) has been addressed in the literature. However, the development of compositional thermal simulators in conjunction with the EOS formulation, in particular, has not been addressed extensively. In this work, a fully implicit, thermal, compos
Braz. J. Chem. Eng.. Publicado em: 2015-03
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4. Metodologia para aplicar LES ao craqueamento catalítico fluido em um reator riser industrial / Large eddy simulation application methodology to a fluid catalytic cracking industry reactor
The main objective of this thesis is to propose a methodology in how to apply Large Eddy Simulation (LES) on a unit of catalytic cracking. In order to achieve this, it was proposed an alternative way of constructing the computational mesh, by using quasi-uniform meshes. The proposed meshes were implemented to minimize the computational effort and procedure f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/09/2012
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5. Simulação de grandes escalas para análise numérica da esteira aerodinâmica da turbina eólica NREL UAE Phase VI
The Unsteady Aerodynamics Experiment Phase VI, which has been carried out in 2000 by the US National Renewable Energy Laboratory (NREL) at the NASA Ames wind tunnel, has been numerically reproduced. The purpose of this work is to study the characteristics of the wind wake produced by the 10 meter two bladed wind turbine, operating at a constant rotational sp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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6. PARALLEL TOPOLOGICAL SUPPORT FOR FINITE ELEMENT MESHES IN DYNAMIC FRACTURE AND FRAGMENTATION ANALYSES / SUPORTE TOPOLÓGICO EM PARALELO PARA MALHAS DE ELEMENTOS FINITOS EM ANÁLISES DINÂMICAS DE FRATURA E FRAGMENTAÇÃO
Fracture propagation and fragmentation phenomena in solids can be described by Cohesive Zone Models and simulated with the Finite Element Method. Among the computational approaches of recent interest for fracture representation in finite element meshes are those based on cohesive elements. In those approaches, fracture behavior is represented by cohesive ele
Publicado em: 2011
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7. A new particle-like method for high-speed flows with chemical non-equilibrium
Abstract: The present work is concerned with the numerical simulation of hypersonic blunt body flows with chemical non-equilibrium. New theoretical and numerical formulations for coupling the chemical reaction to the fluid dynamics are presented and validated. The fluid dynamics is defined for a stationary unstructured mesh and the chemical reaction process
J. Aerosp. Technol. Manag.. Publicado em: 2010-04
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8. A comparative study of implicit and explicit methods using unstructured voronoi meshes in petroleum reservoir simulation
This work presents a comparative study among three linearization schemes widely used in petroleum reservoir simulation, namely the Implicit Pressure Explicit Saturation (IMPES), Fully Implicit (FI) and Adaptive Implicit Method (AIM). Attention is given to the criterion used for switching from IMPES to FI and vice-versa. The black-oil model considering the oi
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-12
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9. 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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10. Análise de esquemas numéricos de cinco e nove pontos para malhas tipo corner-point
In petroleum reservoir simulation is common to use numerical calculations that simplify the governing conservation equations in order to reduce the computational time, increase the simulator robustness and simplicity. However, these approximations may result in considerable errors. A classic type of this approximation, studied in this work, is the five point
Publicado em: 2009
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11. The use of the perturbative methods for the sensi-tivity analysis in hyperthermic problems caused by the laser sources in the treatment of tumors / Uso de métodos perturbativos para análise de sensibi-lidade em problemas de hipertermia causada por fontes de laser usadas no tratamento de tumores
The hyperthermic procedures available for therapeutic treatments of tumors can cause thermal damage in the adjacent living tissues and it is necessary to have an effective control systems. The temperature distribution inside the tissue must be controlled in order to avoid thermal damages to the healthy tissues in the neighborhood of the tumor. Numeri-cal sim
Publicado em: 2009
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12. Three-dimensional flow calculations of axial compressors and turbines using CFD techniques.
With the advent of powerful computer hardware, Computational Fluid Dynamics (CFD) has been vastly used by researches and scientists to investigate flow behavior and its properties. The cost of CFD simulation is very small compared to the experimental arsenal as test facilities and wind-tunnels. In the last years many CFD commercial packages were developed an
Publicado em: 2009