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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 41362 (08)
- University: Sharif University of Technology
- Department: Mechanical Engineering
- Advisor(s): Taghizadeh Manzari, Mehrdad
- Abstract:
- Taghizadeh Manzari, M. (In this work, a modified Smoothed Particle Hydrodynamics (SPH) method, with a new moving solid boundary treatment approach, is utilized to simulate the particulateflow problems. The renormalized first and second derivative schemes which lead tothe consistency of the method, are also used along with a modification to the continuityequation which prevents the spurious pressure oscillations. The proposed methodis validated by solving benchmark problems of solid body motion in channel flows.There is a good agreement between the obtained results and those reported in theliterature. The convergence of solutions for different domain discretizations is alsoassessed. In order to evaluate the improvement of the simulated results due to theproposed new boundary treatment method, a comparison with the so-called DummyParticles approach and the Immersed Boundary Method (IBM) is performed. In furthersimulations, the presence of other solid bodies and wall effects are investigated.The proposed SPH method is extended for viscoelastic fluid flows and validated incases of solid particles migration in Couette flow of an Oldroyd-B fluid. All of thepresented simulations and results show the capability of the proposed method in thecontext of particulate flow problems
- Keywords:
- Smoothed Particle Hydrodynamics (SPH) ; Boundary Conditions ; Viscoelastic Fluids ; Immersed Boundary Method (IBM) ; Fluid-Solid Interaction ; Particulate Flow ; Fluid-Solid Mixture
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