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dc.contributor.authorGrau, Francesc X.
dc.date.accessioned2009-06-02T15:05:32Z
dc.date.available2009-06-02T15:05:32Z
dc.date.issued1993
dc.identifier.issn1886-158X
dc.identifier.urihttp://hdl.handle.net/2099/7767
dc.description.abstractA partir del programa original de Rogallo (1981) y del derivado po) Lee y Reynolds (1985)) se ha elaborado un programa de simulación directa de la turbulencia homogénea bidimensional. Este programa se ha usado para medir la velocidad de retorno a la isotropía en un flujo turbulento homogéneo inicialmente no isotrópico y para deducir e l efecto de los esfuerzos normales sobre la turbulencia bidimensional isotrópica. Los resultados obtenidos han permitido observar que (1) sí que existe retorno a la isotropía cuando se relaja u4 campo inicialmente no isotrópico y se mantiene la bidimensionalidad y (2) la deformación de un campo bidimensional isotrópico no introduce ninguna anisotropía.
dc.description.abstractThe effects of anisotropy on the decay of two-dimensional turbulence have been studied using a computer code for the direct numerical simulation of homogqneous two-dimensional turbulence, developed from the original code of Rogallo (1981) and the subsequent code of Lee and Reynolds (1985). Also, the effects of normal strain on isotropic two-dimensional turbulence have been established. Results show that (1) it exists return to isotropy during the relaxation process of an initially non isotropic, two-dimensional, homogeneous flow and (2) the deformation of an isotropic two-dimensionalfield by means of a plane strain does not droduce any anisotropic effect.
dc.format.extent32 p.
dc.language.isospa
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics
dc.subject.lcshNumerical Methods
dc.titleExperimentos numéricos en turbulencias homogénea, no isotrópica y bidimensional
dc.typeArticle
dc.subject.lemacAnàlisi numèrica
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access


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