Study of Rheology of Suspensions Using SPH Method and Immersed Boundary Method

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Jahangiri Mamouri, Sina | 2010

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 41008 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Taghizadeh Manzari, Mehrdad
Abstract:
In this thesis, an Incompressible SPH (ISPH) method is used to simulate suspensions. A suspension is assumed to be a mixture of solid particles in a Newtonian fluid. First, renormalization tensors are applied to the discretized equations of SPH method. This leads to a higher accuracy in this method. It should be noted that the projection method is used for ISPH. After that, the Immersed Boundary Method (IBM) is used to model and simulate the presence of solid particles in fluid flow. Some modifications were necessary to use IBM with Lagrangian approach. Then, some benchmark problems are solved to validate the presented method. The main objective of the present thesis is simulation of suspensions. Shear flow is used as the main model of the present study. Effect of particle size and solid fraction on the apparent viscosity is investigated.
Keywords:
Projection Method ; Smoothed Particle Hydrodynamics (SPH) ; Suspension System ; Apparent Viscosity ; Immersed Boundary Method (IBM) ; Shear Flow

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