Second Order Finite Difference Scheme
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Reduced-order strategy for meshless solution of plate bending problems with the generalized finite difference method
Abstract This paper presents some recent advances on the numerical solution of the classical Germain-Lagrange equation for plate bending of thin elastic plates. A meshless strategy using the Generalized Finite Difference Method (GFDM) is proposed upon substitution of the original fourth-order differential equation by a system composed of two second-order par
Lat. Am. j. solids struct.. Publicado em: 04/02/2019
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2. NUMERICAL SIMULATION OF THE INCOMPRESSIBLE TURBULENT FLOW OF A BINARY MIXTURE OF AIR-WATER VAPOR: APPLICATIONS IN DRYING PROCESS
Abstract The present work deals with numerical simulation of the incompressible turbulent flow of a binary mixture air-water vapor inside channels. Calculations are performed using the RANS (Reynolds Average Navier-Stokes Equations) formulation in addition to the standart k-ε turbulence model. The mathematical model is discretized by a finite difference sch
Braz. J. Chem. Eng.. Publicado em: 2016-06
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3. Structured high resolution algorithms in the solution of the euler equations in the two-dimensional space
The present work compares the high resolution schemes of (1) Yee, Warming and Harten, (2) Harten, (3) Yee and Kutler and (4) Hughson and Beran applied to the solution of aeronautical and aerospace problems. All schemes are TVD flux difference splitting type and are second order accurate in space. The Euler equations in conservative form, employing a finite v
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-06
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4. Computational modeling of two and three-phase flow in heterogeneous petroleum reservoirs / Modelagem computacional de escoamentos com duas e três fases em reservatórios petrolíferos heterogêneos
Considera-se neste trabalho um modelo matemático para escoamentos com duas e três fases em reservatórios petrolíferos e a modelagem computacional do sistema de equações governantes para a sua solução numérica. Os fluidos são imiscíveis e incompressíveis e as heterogeneidades da rocha reservatório são modeladas estocasticamente. Além disso, é
Publicado em: 2008
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5. Aplicação da técnica LOD em métodos no domínio do tempo e freqüência para modelagem de meios convencionais e metamateriais / Application of LOD technique in time and frequency domain methods for modelling conventional and metamaterial media
This work focuses on developing efficient numerical methods, both in time and frequency domains, for modeling wave propagation in structures that present conventional media and/or metamaterial media combinations, particularly the metamaterials where both permeability and permittivity are simultaneously negative. In some cases, the simulation of such structur
Publicado em: 2007
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6. Avaliação numerica de esquemas para equação eliptica de transporte conectivo-difuso
This work presents a study about five finite difference schemes applied to the numerical solution of convective diffusive transport equation of heat, momentum or species mass. The case of parallel flow is employed where the analysed property is expressed in two-dimensional coordinates. The schemes are the second order ones central differencing, Allen and Sou
Publicado em: 1994