Resolución numérica de las ecuaciones de Navier-Stokes con Openfoam®: el problema del flujo en un canal con escalón
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Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Centro Universitario Rosario de Investigaciones Hidroambientales (CURIHAM). Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario.
Abstract
Description
En este trabajo se considera un problema asociado a las ecuaciones de Navier-Stokes y de continuidad co-rrespondiente al flujo en un canal con escalón bidimensional para Re = 800, se lo resuelve numéricamente mediante el Método de Volúmenes Finitos a través OpenFOAM® y se analiza la posibilidad de obtener una solución numérica estacionaria. Complementariamente se define un concepto de cuasi-estacionariedad para monitorear la solución calculada. Se comparan los resultados correspondientes al campo de velocidad, con resultados numéricos publicados para el caso estacionario y se analizan las ubicaciones de las condiciones de flujo entrante y saliente.
In this work we study a problem associated to the Navier-Stokes and continuity equations corresponding to a 2D backward-facing step flow problem at Reynolds number 800. Numerical solutions evaluated using the Finite Volume Method with OpenFOAM® are presented and the possibility of obtaining a stationary numeri-cal solution is analyzed. Besides, a quasi-stationary state is defined to get a further insight into the computed solutions. Results obtained for the velocity field are compared with published ones for the steady case and different inlet-outlet positions are considered.
In this work we study a problem associated to the Navier-Stokes and continuity equations corresponding to a 2D backward-facing step flow problem at Reynolds number 800. Numerical solutions evaluated using the Finite Volume Method with OpenFOAM® are presented and the possibility of obtaining a stationary numeri-cal solution is analyzed. Besides, a quasi-stationary state is defined to get a further insight into the computed solutions. Results obtained for the velocity field are compared with published ones for the steady case and different inlet-outlet positions are considered.
Keywords
ecuaciones de Navier-Stok, problema del canal con escalón, método de volúmenes finitos, OpenFOAM®