Third M.I.T. Conference on Computational Fluid and Solid Mechanics June 14–17, 2005  

FEM simulation of unsteady viscous incompressible fluid flows

A. Tralli*, P. Gaudenzi
Dipartimento di Ingegneria Aerospaziale e Astronautica, Università di Roma 'La Sapienza', Via Eudossiana, 16, Rome, Italy
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ABSTRACT
A fractional-step method to solve unsteady viscous incompressible flows is described. A semi-implicit time-advancement scheme is used to solve the dynamics equations, and the space discretization is performed by Finite Elements. The 2-D flow in a driven cavity at Re = 1000 and around a cylinder at Re = 100 are presented, with good correspondence with the benchmark solutions.

Keywords:  Fractional step; FEM; Incompressible; Viscous flow; Unsteady; Driven cavity; Cylinder
* Corresponding author. Tel.: + 39 (0) 644 585738; Fax: + 39 (0) 644 585670; E-mail: aldo.tralli@uniroma1.it