Listar GI-GMNE - Congresos, conferencias, etc. por data de publicación
Mostrando ítems 21-40 de 77
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Resolución numérica de problemas de potencial en aplicaciones de ingeniería mediante métodos sin malla
(Sociedad Española de Métodos Numéricos en Ingeniería, 1999)[Resumen] El proceso de discretización del dominio y la consiguiente generación de una malla de elementos es el punto de partida, pero también una de las mayores dificultades, de la aplicación de los métodos de elementos ... -
Aplicación de una formulación numérica de elementos finitos para el estudio de problemas de transporte convectivo en zonas portuarias
(Sociedad Española de Métodos Numéricos en Ingeniería, 1999)[Resumen] La ecuación diferencial del trasporte por convección-difusión permite modelizar un gran número de procesos de interés en la ingeniería. Así, fenómenos com el estudio de la distribución de temperaturas en una pieza ... -
Desarrollo de una formulación numérica basada en el MEF para la estabilización de problemas de transporte por convección-difusión
(Sociedad Española de Métodos Numéricos en Ingeniería, 1999)[Resumen] La modelización de problemas en mecánica de fluidos cuando la velocidad del fluido es elevada resulta complicada debido a la aparición de inestabilidades en la solución numérica al emplear esquemas convencionales ... -
Una formulación en elementos finitos para la resolución del flujo viscoso incompresible no permanente
(Sociedad Española de Métodos Numéricos en Ingeniería, 1999)[Resumen] Se expone en este trabajo el resultado de la elaboración de un código, que basado en el método de los elementos finitos, resuelve la ecuación de Navier–Stokes en un dominio bidimensional, para condiciones iniciales ... -
A 2D numerical model for the transport of pollutants. The influence of Boundary Conditions
(Utah State University Extension, 1999)[Abstract] The pollutants transport phenomena in a 2D unsteady free surface flow has been studied. The weighted residual method has been used for the integration of the transport equations, appying the Galerkin formulation ... -
Finite element solution of the Navier-Stokes equations using a SUPG formulation
(Universidad de Zaragoza, 1999) -
Galerkin, Least-Squares and GLS numerical approaches for advective-diffussive transport problems in engineering
(The International Center of Numerical Methods in Engineering, 2000)[Abstract] In this paper, a study of three FE numerical formulations (Galerkin, Least Squares and Galerkin/Least Squares) applied to the convective-diffuse problem is presented, focusing our attention in high Péclet-number ... -
Computing stabilization parameters in numerical models for advective-diffusive transport problems
(Universidade de Aveiro, 2000)[Abstract] Numerical modelling in Fluid Mechanics is particulary difficult in high-advective fluid problems. The Finite Element Method, which has been sucessfully applied to very challenging problems in Computational ... -
An enriched meshless numerical approach for potential theory problems
(The International Center of Numerical Methods in Engineering, 2000)[Abstract] One of the meshless thechniques that have been recently proposed for solving Boundary Value Problems is the so-called Weighted Least Square (WLS) Method with a Point Collocation approach. Meshless methods were ... -
Parallel computing aided design of earthing systems for electrical substations in non homogeneous soil models
(IEEE Computer Society, 2000)[Abstract] An accurate design of grounding systems is essential to assure the safety of the persons, to protect the equipment and to avoid interruptions in the power supply. In order to attain these targets, the equivalent ... -
A general numerical model for grounding analysis in layered soils
(Civil-Comp, 2000)[Abstract] The safety of the persons, the protection of the equipment and the continuity of the power supply are the main objectives of the grounding system of a large electrical installation. For its accurate design, it ... -
Enrichment of weighted least-squares approaches for potential problems in engineering applications
(Universidade de Aveiro, 2000)[Abstract] In this paper, we review one of the meshless methods proposed in last years for solving boundary value problems based on a weighed least square methods. Furthermore, we analyze the use of enrichment techniques ... -
On the resolution of the viscous incompressible flow for various SUPG finite element formulations
(The International Center of Numerical Methods in Engineering, 2000)[Abstract] A Finite Element based program has been released to solve the steady 2D Navier- Stokes equations. The mixed-variable algorithm is used as a first approach to solve the differential problem. In order to reduce ... -
Numerical modelling for grounding grids in high-performance parallel computers
(WIT, 2000)[Abstract] The design of safe grounding systems in electrical installations is essential to assure the security of the persons, the protection of the equipment and the continuity of the power supply [1,2]. In order to ... -
Stabilization of numerical formulations for convective-diffussive transport problems
(The International Center of Numerical Methods in Engineering, 2000)[Abstract] Numerical simulation in Fluid Mechanics is an extremely difficult task, wich complexity increases exponentially as the velocity of the fluid becomes higher. In particular, it is know that serious troubles are ... -
A unified approach for high order sensitivity analysis
(Computational Mechanics Publications, 2001)[Abstract] Many engineering problems require solving PDEs by means of numerical methods (type FEM/BEM) which sensivity analysis entails taking derivatives of functions defined through integration. In sizing optimization ... -
Meshless methods applied to potential flow problems
(Elsevier, 2001)[Abstract] In this paper we discuss some of the meshless approaches that have been recently proposed for solving boundary value problems. Several functional approximations and different integration schemes are studied. In ... -
Petrov-Galerkin and Galerkin/Least Squares stabilized approaches for advectivediffusive transport problems
(Fundacja Zdrowia Publicznego "Vesalius", 2001)[Abstract] The Finite Element method with a Galerkin type weighting is a straight-forward weighted residual method that has been sucessfuly used in many engineering applications, specially in Solid Mechanics. However, this ... -
Development of integration schemes for meshless numerical approaches based on the SPH method
(The Institute of Mathematics and its Applications, 2001)[Abstract] In this paper we discuss some of the meshless formulations that have been recently proposed for solving Boundary Value Problems. Several functional approximations are studied both, from a continuum and from a ...