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Analytical integration techniques for earthing grid computation by boundary element methods
(Centro Internacional de Métodos Numéricos en Ingeniería, CIMNE (Barcelona), 1992)
[Abstract] Analysis and design of substation earthing involves computing the equivalent resistance of grounding systems, but also distribution of potentials on the earth surface due to fault currents [1]. While very crude ...
A validation of the boundary element method for grounding grid design and computation
(Centro Internacional de Métodos Numéricos en Ingeniería, CIMNE (Barcelona), 1992)
[Abstract] Several widespread intuitive techniques developed during the last two decades for substation grounding analysis, such as the Average Potential Method
(APM), have been recently identified as particular cases of ...
¿Son fiables los métodos convencionales para el cálculo de redes de puesta a tierra?
(2004)
[Resumen] Para diseñar una toma de tierra es preciso calcular su resistencia equivalente y la distribución de potencial en la superficie del terreno durante una derivación de corriente [1, 2, 3]. Para elllo las normas sólo ...
Finite volume solvers and moving least-squares approximations for the compressible Navier-Stokes equations on unstructured grids
(Elsevier, 2005)
[Abstract] This paper introduces the use of Moving Least-Squares (MLS) approximations for
the development of high order upwind schemes on unstructured grids, applied to
the numerical solution of the compressible Navier-Stokes ...
On the Galerkin formulation of the smoothed particle hydrodynamics method
(John Wiley and Sons, 2004)
[Abstract] In this paper, we propose a Galerkin-based smoothed particle hydrodynamics (SPH) formulation with
moving least-squares meshless approximation, applied to free surface flows. The Galerkin scheme
provides a clear ...
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 ...
Minimum weight with stress constraints topology optimization
(2003)
[Abstract] Sizing and shape structural optimization problems are normally stated in terms of
a minimum weight approach with constraints that limit the maximum allowable
stresses and displacements.
However, topology ...
A BEM formulation for computational design of grounding systems in stratified soils
(Centro Internacional de Métodos Numéricos en Ingeniería, 1998)
[Abstract] Substation grounding design involves computing the equivalent resistance of the earthing system -for reasons of equipment protection-, as well as distribution of
potentials on the earth surface -for reasons of ...
Numerical approaches for grounding installations in uniform and stratified soils
(2002)
[Abstract] This paper summarizes the main numerical approaches based on the BEM developed by the authors in the last years for the grounding analysis of electrical installations in uniform and layered soils.
High order shape design sensitivity: an unified approach
(Centro Internacional de Métodos Numéricos en Ingeniería, 1998)
[Abstract] Three basic analytical approaches have been proposed for the calculation
of sensitivity derivatives in shape optimization problems. The first approach is based
on differentiation of the discretized equations. ...