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dc.contributor.authorRubio Hernández, Verónica 
dc.date.accessioned2015-06-26T10:39:41Z
dc.date.available2015-06-26T10:39:41Z
dc.date.issued2014
dc.description.abstract[SPA] La presente tesis doctoral aborda el estudio y resolución de diferentes problemas relacionados con la transferencia de calor y mecánica de fluidos, mediante el Método de Simulación por Redes (MESIR). Los resultados numéricos obtenidos son suficientemente precisos y con margen de error característico del campo de la Ingeniería Térmica. El análisis de los estudios acerca de la transferencia en masa y calor por un fluido hidromágnético sobre determinadas superficies, como un disco giratorio o canal de placas paralelas se han elaborado ampliamente en esta memoria. Se presta especial atención en el estudio de flujos magnetohidrodinamicos y aspectos de transferencia de calor en varias geometrías considerando además la relevancia de este tema en numerosas investigaciones en los ámbitos de la Ciencia y la Ingeniería. La convección mixta laminar en un canal de placas paralelas por un fluido newtoniano conductor de electricidad es analizada, estudiándose la influencia de los parámetros de convección mixta, disipación viscosa y magnética, coeficiente de generación/absorción de calor y campo magnético, tanto en el estudio estacionario como en el transitorio. Se han presentado las soluciones analíticas y numéricas para una clase de flujos unidireccionales transitorios de un fluido de segundo grado. Además, se discuten dos situaciones de flujos distintas de un fluido entre dos fronteras paralelas. El interés sobre los fluidos no-newtonianos se ha incrementado en los últimos años considerablemente. También se ha realizado un análisis numérico sobre los efectos de radiación y reacción química sobre convección libre magnetohidrodinámica a través de un medio poroso. Se han comparado las soluciones analítica y numérica con éxito y se ha verificado la exactitud de los resultados. El diseño de los modelos en red así como la implementación de las condiciones de contorno, se explican en el Capítulo 2. Se han desarrollado los ficheros fuentes (C++) para resolver posteriormente todos los casos analizados. Este programa permite la introducción de todos los parámetros que define cada caso estudiado, generando un archivo de texto con el formato de un circuito eléctrico, para poder ejecutar el programa Pspice y obtener los resultados en formato de texto o gráfico, empleando el osciloscopio virtual Probe disponible en el paquete de Pspice. [ENG] The present doctoral thesis tackles the study and resolution of different problems related to the heat transfer and fluids mechanics, by means of the Network Simulation Method (NSM). The numerical results are sufficiently precise and with characteristic error margin of the Thermal Engineering field. The analysis of heat and mass transfer studies for a hydromagnetic fluid on certain surfaces, such as a rotating disk or parallel plates channel have been widely elaborated herein. Special attention is paid to the study of magnetohydrodynamic flows aspects with heat transfer in several geometries also considering the importance of this issue in numerous investigations in the Science and Engineering fields. Laminar mixed convection in a vertical parallel plate channels for a newtonian electrically conducting fluid is analyzed. Both steady and transient studies were made considering the influences of mixed convection parameter, viscous and magnetic dissipation, heat generation / absorption coefficient and magnetic field. The analytical and numerical solutions are presented for a class of unsteady unidirectional flows of a second grade fluid. Furthermore, two different situations of fluid flows between two parallel borders are discussed. The interest on non-Newtonian fluids has increased considerably in recent years. In addition, a study has been conducted about the radiation and chemical reaction effects on MHD free convection through a porous medium. Analytical and numerical solutions have been compared successfully and the accuracy of results was verfied. Models network design as well as the implementation of the boundary conditions are explained in Chapter 2. The source files have been developed (C++) to solve all cases analyzed later. This program allows the introduction of all the parameters that defines all studied cases, generating a text file in the format of an electrical circuit to be run in the Pspice simulator and get the results as text or graphic, using the virtual oscilloscope Probe available in the package Pspice.es_ES
dc.description.abstract[ENG] The present doctoral thesis tackles the study and resolution of different problems related to the heat transfer and fluids mechanics, by means of the Network Simulation Method (NSM). The numerical results are sufficiently precise and with characteristic error margin of the Thermal Engineering field. The analysis of heat and mass transfer studies for a hydromagnetic fluid on certain surfaces, such as a rotating disk or parallel plates channel have been widely elaborated herein. Special attention is paid to the study of magnetohydrodynamic flows aspects with heat transfer in several geometries also considering the importance of this issue in numerous investigations in the Science and Engineering fields. Laminar mixed convection in a vertical parallel plate channels for a newtonian electrically conducting fluid is analyzed. Both steady and transient studies were made considering the influences of mixed convection parameter, viscous and magnetic dissipation, heat generation / absorption coefficient and magnetic field. The analytical and numerical solutions are presented for a class of unsteady unidirectional flows of a second grade fluid. Furthermore, two different situations of fluid flows between two parallel borders are discussed. The interest on non-Newtonian fluids has increased considerably in recent years. In addition, a study has been conducted about the radiation and chemical reaction effects on MHD free convection through a porous medium. Analytical and numerical solutions have been compared successfully and the accuracy of results was verfied. Models network design as well as the implementation of the boundary conditions are explained in Chapter 2. The source files have been developed (C++) to solve all cases analyzed later. This program allows the introduction of all the parameters that defines all studied cases, generating a text file in the format of an electrical circuit to be run in the Pspice simulator and get the results as text or graphic, using the virtual oscilloscope Probe available in the package Pspice.en
dc.formatapplication/pdfes_ES
dc.language.isospaes_ES
dc.publisherVerónica Rubio Hernándezes_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.titleSolución numérica de problemas de fenómenos de transporte aplicando analogía eléctrica y el programa Pspicees_ES
dc.typeinfo:eu-repo/semantics/doctoralThesises_ES
dc.contributor.advisorZueco Jordán, Joaquín 
dc.date.submitted2015-03-26
dc.subjectTransferencia de calores_ES
dc.subjectMecánica de fluidoses_ES
dc.subjectMétodo de Simulación por Redes (MESIR)es_ES
dc.subjectPaquete de Pspicees_ES
dc.subjectHeat transferes_ES
dc.subjectFluid mechanicses_ES
dc.subjectNetwork Simulation Method (NSM)es_ES
dc.subjectPackage Pspicees_ES
dc.identifier.urihttp://hdl.handle.net/10317/4829
dc.contributor.departmentIngeniería Térmica y de Fluidoses_ES
dc.identifier.doi10.31428/10317/4829
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.description.universityUniversidad Politécnica de Cartagenaes_ES


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