Buscar
Mostrando ítems 1-10 de 92
On the anomalous asymptotic performance of the regular computer methods for grounding analysis
(2003)
[Abstract] Grounding systems are designed to guarantee personal security, protection of equipments
and continuity of power supply. Hence, engineers must compute the equivalent
resistance of the system and the potential ...
High order finite volume schemes on unstructured grids using Moving Least Squares reconstruction. Application to shallow water dynamics
(John Wiley and Sons, 2005)
[Abstract] This paper introduces the use of Moving Least Squares (MLS) approximations for the development
of high-order finite volume discretizations on unstructured grids. The field variables and their
succesive derivatives ...
A general numerical model for grounding analysis in layered soils
(Elsevier, 2002)
[Abstract] Safety of persons, protection and equipment and continuity of power supply are the main objectives of the grounding system of a large electrical installation. For its accurate design, it is essential to determine ...
Numerical Analysis and Safety Design of Grounding Systems in Underground Compact Substations
(Elsevier, 2022)
[Abstract] This paper presents a mathematical and numerical formulation to design and analyze grounding systems in underground electrical substations. The developed approach is based on the well known Maxwell’s Equations. ...
Una formulación alternativa para el problema del transporte por convección-difusión
(2004)
[Resumen] La resolución numérica de problemas de dinámica de fluidos es muy compleja. En concreto, la resolución numérica de la ecuación del transporte por convección–difusión es
tremendamente complicada a pesar de ser ...
A numerical approach based on the BEM for computing transferred earth potentials in grounding analysis
(2003)
[Abstract] In this paper we present a numerical approach based on the Boundary Element Method for the analysis
of a very common problem in electrical engineering practice: the existence of transferred earth potentials
in ...
Modelling Free-surface flows by a Galerkin based SPH formulation
(2003)
[Abastract] An algorithm based on Moving Least Squares Particle Hydrodynamics (MLSPH) to solve free surface flow is presented. MLS shape functions remarkably improve stability
and accuracy of standard SPH algorithms, ...
Un planteamiento generalizado para el problema de convención-difusión. Formulación numérica y aplicaciones
(2005)
Obtener una solución numérica precisa y estable de la ecuación de convección-difusi
ón requiere un gran coste computacional en situaciones de convección dominante.
Además, la formulación clásica del problema no es ...
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 ...