ResumenEn este trabajo se utiliza un modelo epidemiológico básico para determinar la evolución del COVID-19 en cada una de las regiones del Perú. Para determinar los parámetros del modelo que caracteriza una determinada epidemia, se utiliza los reportes de las personas infectadas, fallecidas y recuperadas proporcionados por las Gerencias Regionales de Salud del Perú. Como resultado, se obtiene la configuración de los infectados, susceptibles y removidos que concuerda con la bibliografía existente, así también se obtiene un intervalo de tiempo en que hay un considerable número de infectados, el máximo de infectados y la fecha en que ocurre.
SUMMARYThis work considers the internal ow of an incompressible viscous uid contained in a rectangular duct subject to a rotation. A direct velocity-pressure algorithm in primitive variables with a Neumann condition for the pressure is employed. The spatial discretization is made with ÿnite central di erences on a staggered grid. The pressure and velocity ÿelds are directly updated without any iteration. Numerical simulations with several Reynolds numbers and rotation rates were performed for ducts of aspect ratios 2:1 and 8:1.
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