Simulação numérica do escoamento ao redor de cilindros: aplicação a problemas bi e tridimensionais.

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Author(s):	Cesareo de La Rosa Siqueira Total Authors: 1
Document type:	Doctoral Thesis
Press:	São Paulo.
Institution:	Universidade de São Paulo (USP). Escola Politécnica (EP/BC)
Defense date:	1999-12-13
Examining board members:	Julio Romano Meneghini; Jose Augusto Penteado Aranha; José Alfredo Ferrari Júnior; Marcos de Mattos Pimenta; Sergio Hamilton Sphaier
Advisor:	Julio Romano Meneghini
Abstract
The Discrete Vortex Method (DVM) in a hybrid eulerian-lagrangean formulation and the Fractional Step Method (ESM) for the solution of the Navier-Stokes equations are employed with a view to analyse their capabilities regarding the computational simulation of the flow around submerged bodies with vortex shedding for two-dimensional problems. The FSM was extended for the solution of three-dimensional problems, The methods were implemented by means of a finite element method using an unstructured three-noded triangular mesh for two-dimensional cases and an unstructured four-noded tetrahedral mesh for three-dimensional ones. The FSM developed is used to study the two-dimensional flow around one or more fixed cylinders at low Reynolds numbers and the three-dimensional flow around a fixed cylinder and a cylinder with forced oscillations in the transversalo direction to the incoming flow, also for low Reynolds numbers. (AU)