{"id":110378,"date":"2018-03-11T10:36:19","date_gmt":"2018-03-11T10:36:19","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/a-practical-method-for-computational-aeroacoustics-in-low-mach-number-flows\/"},"modified":"2018-03-11T10:36:19","modified_gmt":"2018-03-11T10:36:19","slug":"a-practical-method-for-computational-aeroacoustics-in-low-mach-number-flows","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/mecanica-de-liquidos\/a-practical-method-for-computational-aeroacoustics-in-low-mach-number-flows\/","title":{"rendered":"A practical method for computational aeroacoustics in low mach number flows"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ainara Pradera Mallabiabarrena <\/strong><\/h2>\n<p>Los continuos avances en las prestaciones y velocidad de los procesadores junto con la optimizaci\u00f3n de los m\u00e9todos num\u00e9ricos han permitido plantearse la predicci\u00f3n del ruido generado por un flujo turbulento mediante modelos matem\u00e1ticos. Sin embargo, el uso de c\u00f3digos computacionales aeroac\u00fasticos est\u00e1 bastante limitado fuera de las aplicaciones aeron\u00e1uticas y parte de la industria de la automoci\u00f3n. Esto se debe principalmente al elevado coste computacional requerido, y a la necesidad de c\u00f3digos ac\u00fasticos hechos a medida, algo inaccesible para usuarios industriales. esta tesis estudia una metodolog\u00eda flexible para la predicci\u00f3n de ruido. las principales aportaciones de este trabajo est\u00e1n centradas en la forma en la que los par\u00e1metros de flujo obtenidos en la simulaci\u00f3n fluidodin\u00e1mica se sintetizan, se almacenan y posteriormente son utilizados en la predicci\u00f3n de ruido, adem\u00e1s del procedimiento utilizado para calcular la propagaci\u00f3n ac\u00fastica. la metodolog\u00eda se ha aplicado a flujos con bajos n\u00fameros de mach. En este tipo de flujos la generaci\u00f3n de ruido est\u00e1 dominada por la interacci\u00f3n del flujo con una superficie en la que al menos una de las dimensiones es peque\u00f1a comparada con la longitud de onda de inter\u00e9s, es decir, lo que se conoce como una fuente compacta. Esta restricci\u00f3n permite centrarse en el t\u00e9rmino de fuente superficial en la ecuaci\u00f3n de ffowcs williams-hawkings, que es la principal fuente de ruido en un gran n\u00famero de aplicaciones pr\u00e1cticas. Sin embargo, puede haber otras superficies pr\u00f3ximas a la fuente compacta. Estas superficies no son compactas, y su principal aportaci\u00f3n en la generaci\u00f3n y propagaci\u00f3n de ruido es la dispersi\u00f3n del ruido generado por la interacci\u00f3n del fluido con la superficie compacta.La radiaci\u00f3n ac\u00fastica se ha realizado utilizando m\u00e9todos puramente anal\u00edticos o num\u00e9ricos, dependiendo del tipo de aplicaci\u00f3n. finalmente, este m\u00e9todo permite reducir considerablemente el espacio requerido para almacenar y transferir informaci\u00f3n. Adem\u00e1s, si el flujo no cambia, no es necesario repetir la simulaci\u00f3n fluidodin\u00e1mica para estudiar distintos escenarios ac\u00fasticos.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>A practical method for computational aeroacoustics in low mach number flows<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 A practical method for computational aeroacoustics in low mach number flows <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ainara Pradera Mallabiabarrena <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Navarra<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 19\/07\/2011<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>negrete Laborda Gil<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Carlos Bastero de eleizalde <\/li>\n<li>finn Jacobsen (vocal)<\/li>\n<li>christian Svendsen (vocal)<\/li>\n<li>Jos\u00e9 Manuel Abete huici (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ainara Pradera Mallabiabarrena Los continuos avances en las prestaciones y velocidad de los procesadores junto con la 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