(UERJ), em desenvolvimento desde 2010, reúne um conjunto de atividades extensionistas voltadas para divulgação e popularização de ciência, visando estimular o gosto por ela em seu público-alvo (segmentado em alunos universitários da área de ciências exatas, alunos e professores de Física e Matemática do ensino médio e alunos do ensino fundamental). As atividades aqui relatadas tratam de palestras, minicursos e visitas técnicas aos laboratórios de Física da UERJ e oficinas nessa área do conhecimento. PALAVRAS-CHAVE: Extensão universitária. Divulgação científica. Popularização de ciência.
We study the radial expansion of cylindrical tubes in a hot QGP described by the equation of state of the MIT bag model. These tubes are treated as perturbations in the energy density of the system which is formed in heavy ion collisions at RHIC and LHC. We start from the equations of viscous relativistic hydrodynamics in two spatial dimensions with cylindrical symmetry and perform an expansion of these equations in a small parameter, conserving the nonlinearity of the hydrodynamical formalism. The relativistic viscous fluid is studied with a relativistic NavierStokes equation and the perturbations are governed by the Burgers equation. We estimate the typical expansion time of the tubes.
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