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Master's Dissertation
DOI
10.11606/D.55.2002.tde-31072002-102814
Document
Author
Full name
Ricardo da Silva Siquieri
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2002
Supervisor
Committee
Tomé, Murilo Francisco (President)
Mangiavacchi, Norberto
Mendes, Paulo Roberto de Souza
Title in Portuguese
Análise e implementação de modelos não newtonianos no sistema FreeFlow-2D
Keywords in Portuguese
Dinâmica dos fluidos computacionais
Escoamentos com superficie livre
Escoamentos não newtonianos
Modelo de cross
Power-law
Simulação numérica
Abstract in Portuguese
O presente trabalho consiste em uma extensão do sistema FreeFlow-2D para simular escoamentos de fluidos não newtonianos bidimensionais com superfí cies livres, onde o fluido é descrito pelos modelos de Cross ou o modelo ``power-law''. O método numérico empregado é o método GENSMAC. As equações governantes são aproximadas pelo método de diferenças finitas em uma malha deslocada e partículas marcadoras são utilizadas para a visualização do escoamento e localização da superfície livre. Resultados numéricos são apresentados. Em particular, a presente implementação é validada comparando-se a solução numérica com uma solução analítica
Title in English
Analysis and implementation of non-Newtonian models in FreeFlow-2D system.
Keywords in English
Computational fluid dynamics
Cross model
Free surface flows
Non-Newtonian flows
Numerical simulation
Abstract in English
This work presents an extention of the Freeflow-2D system to non-Newtonian free surface flows. The governing equations are solved by the finite difference method on a staggered grid. Marker particles are used to describe the fluid providing the location and the visualization of the free surface. The methodology employed is based on the GENSMAC method. The fluid is modelled by the Cross and power-law models. Numerical examples are presented. The code is validated by making a comparison between analytical and numerical solutions
 
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Nnewtoniano.pdf (1.22 Mbytes)
Publishing Date
2008-07-04
 
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