Numerical Simulations of the Lattice Boltzmann Method for Determination of Hydrodynamic Properties of Fractal Aggregates

TH`ESE présentéè a la Faculté des sciences de Université de Genève pour obtenir le grade de Docteurès sciences, mention interdisciplinaire par NGUYEN Phi Hung de Hanoi (Vietnam) Thèse N o 3877 GEN`EVE Atelier de reprodution de la Section de physique 2007 La Faculté des sciences, sur le préavis de Messieurs B. CHOPARD, professeur adjoint et directeur de thèse (Département d'informatique), S.STOLL, docteur et co-directeur de thèse (Département de chimie minérale, analytique et appliquée),Acknowledgment During this work, I was supported by many people that I would like to thank them all. First, I sincerely thank my supervisors, Prof. Bastien Chopard and Dr. Serge Stoll, for their tremendous and continuous helps in my work. They both offered me a motivating environment and valuable discussions to fulfill the research. I would like to thank Davide Alemani for sharing with me a friendly and unforgettable time in office 302 with a lot coffee and for his Italian lards. I thank Vincent Keller for the nice time he shared the office with us. I would like to thank Alexandre Dupuis for his first lesson in the lattice Boltzmann method at the beginning of my thesis. I would like to take this chance to thank Dr. Serge Durand Vidal and Prof. Jacques Buffle for accepting to be the members of my jury. I also thank all other colleagues of SPC and CABE group for all their helps in different ways during my thesis. I would therefore like to thank And last but not least, I thank my dear Fred Isler for always standing beside me when in need as a second father to take care of me. I specially thank my parents, my sister and my dear Hanh for what they have done and supported. Special love to my dear " Thogì a " Minh-Anh whose smiles always make me happy and my life more beautiful.