Workshop on numerical methods in applied science and engineering: Enviaments recents
Ara es mostren els items 1-12 de 20
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Strict error bounds in linear solid mechanics using a subdomain-based flux-free approach
(2009-06-08T11:56:46Z)
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Accés obertIn this paper, we derive, in the framework of the ux-free method, strict bounds for the energy norm of the error associated to a finite element computation. In that framework, and when using linear elements, the problems ... -
The block gauss-seidel method in sound transmission problems
(2009-06-08T11:23:31Z)
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Accés obertSound transmission through partitions can be modelled as an acoustic fluid-elastic structure interaction problem. The block Gauss-Seidel iterative method is used in order to solve the finite element linear system of ... -
Simple assessment of the numerical wave number in the fe solution of the helmholtz equation
(2009-06-08T11:13:41Z)
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Accés obertWhen numerical methods are applied to the computation of stationary waves, it is observed that "numerical waves" are dispersive for high wave numbers. The numerical wave shows a phase velocity which depends on the wave ... -
Numerical integration by using local-node gauss-hermite cubature
(2009-06-08T10:53:59Z)
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Accés obertA local–node numerical integration scheme for meshless methods is presented in this work. The distinguishing characteristic of the introduced scheme is that not support mesh or grid to perform numerical integration is ... -
Bounds and adaptivity for 3D limit analysis
(2009-06-08T10:28:14Z)
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Accés obertIn the present paper we compute upper and lower bounds for limit analysis in two and three dimensions. From the solution of the discretised upper and lower bound problems, and from the optimum displacement rate and stress ... -
3D nurbs-enhanced finite element method
(2009-06-08T10:12:04Z)
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Accés obertAn improvement of the classical finite element method is proposed in [1], the NURBS-Enhanced Finite Element Method (NEFEM). It is able to exactly represent the geometry by means of the usual CAD description of the boundary ... -
Acoplamiento del modelo regional de calidad de aire (CMAQ) con el modelo de emisiones locales mediante elementos finitos
(2009-06-08T09:47:57Z)
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Accés obertExisten modelos regionales de calidad del aire que son muy utilizados. Estos modelos tienen modelos para estudiar el aporte de contaminantes provocados por fuentes importantes de contaminación, como pueden ser chimeneas, ... -
Shock-capturing with discontinuous garlekin methods
(2009-06-08T08:32:41Z)
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Accés obertA shock capturing strategy for high order Discontinuous Galerkin methods for conservation laws is proposed. We present a method in the one-dimensional case based on the introduction of artificial viscosity into the ... -
Management, design and developement of a mesh generation environment using open source software
(2009-06-08T08:15:56Z)
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Accés obertIn this paper we present an object oriented implementation of a general-purpose mesh generation environment for geometry-based simulations. The aim of this application is to unify available legacy code and new research ... -
A critical comparison of two discontinuous galerkin methods for the navier-stokes equations using solenoidal aproximations
(2009-06-08T07:49:26Z)
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Accés obertThis paper compares two methods to solve incompressible problems, in particular the Navier-Stokes equations, using a discontinuous polynomial interpolation that is exactly divergence-free in each element. The first method ... -
Galerkin discontinuo local aplicado a problemas de ondas acústicas: condiciones de frontera absorbente locales de bajo orden
(2009-06-02T10:26:49Z)
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Accés obertEn este trabajo se presenta una comparación de la solución numérica de la ecuación de Helmholtz utilizando el método de elementos finitos Galerkin Discontinuo Local (LDG) con varias condiciones de contorno absorbentes ... -
Hierarchical x-fem applied to n-phase flow
(2009-06-02T09:26:48Z)
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Accés obertIn this work we proposed an extencion of the level set technique to track any number of free surfaces. This extension is based in a hierarchical ordering of several level set functions. To complete the X–FEM approach, the ...