[Resumen] En esta tesis doctoral se presenta una formulación numérica general para el cálculo y el diseño asistido por ordenador de tomas de tierra en instalaciones eléctricas. En primer lugar, se identifica la naturaleza ...

[Resument] A model for the propagation of water waves is presented, which retrieves the concepts of rays and fronts from the geometrical optics approximation. Their definition here is nevertheless different in that it ...

[Abstract] The description of the flow that takes place in clarifiers and other wastewater treatment basins may be a powerful tool to attain an optimum design of these structures, in order to make the most of the wastewater ...

[Abstract] In this paper an analysis of the viscous incompressible flow has been carried out, from the very definition of the governing equations, up to the resolution of some practical problems, passing through the ...

[Resumen] En el presente trabajo se exponen los resultados de la aplicación de una formulación numérica propuesta por los autores, en la resolución de varios problemas de flujo relacionados con el tratamiento de aguas ...

[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. In order to achieve ...

[Abstract] In the last years the authors have developed a numerical formulation based on the Boundary Element Method for the analysis of grounding systems embedded in uniform soils. This approach has been implemented in a ...

[Resumen] La puesta a tierra de una instalación eléctrica es imprescindible para garantizar su seguridad cuando tienen lugar situaciones de fallo. Para su correcto diseño se requiere la determinación de una serie de ...

[Abstract] Grounding systems are designed to preserve human safety and grant the integrity of equipments under fault conditions. To achieve these goals, the equivalent electrical resistance of the system must be low ...

[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 ...