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Showing 1 to 20 of 65 for “"Boltzmann method"”.
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Boundless Fluids Using the Lattice-Boltzmann Method
… like smoke, fire, and water. The Lattice-Boltzmann Method (LBM) is one fluid simulation technique that has gained recent popularity due to its relatively simple basic algorithm and the ease with which it can be distributed across multiple processors. Unfortunately, current LBM simulations …
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Parallel Lattice Boltzmann Method for Convection in Dendritic Solidification
… and implementation of a parallel lattice Boltzmann method (LBM) for resolving fluid flow in multi-physics problems, such as alloy solidification, focusing on the effects on microstructure evolution. The literature has shown the importance of fluid flow in solidification as it affects the …
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Numerical Modeling of Microscale Mixing Using Lattice Boltzmann Method
… a numerical model is developed using a lattice Boltzmann method (LBM) to study microscale mixing. The study involves two mixing methods, namely, electroosmotic mixing and magnetic assisted mixing. A single component LBM model is developed to study electroosmotic flow in a square cavity. Mixing …
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Simulation of two-phase dynamics using lattice boltzmann method (LBM)
In this dissertation, a new lattice Boltzmann model, called the artificial interface lattice Boltzmann model (AILB model), is proposed for the simulation of two-phase dynamics. The model is based on the principle of free energy minimization and invokes the Gibbs-Duhem equation in the formulation of …
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Accelerated Lattice Boltzmann Method For Colloidal Suspensions Rheology And Interface Morphology
<p>ABSTRACT</p> <p>ACCELERATED LATTICE BOLTZMANN MODEL FOR COLLOIDAL SUSPENSIONS RHEOLOGY AND INTERFACE MORPHOLOGY</p> <p> by</p> <p> HASSAN FARHAT</p> <p> July 2010</p> <p>Advisor: Dr. Singh Trilochan</p> <p>Co-Advisor: Dr. Joon Sang Lee</p> <p>Major: Mechanical Engineering</p> <p>Degree: Doctor …
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Mesoscopic Numerical Methods for Reactive Flows: Lattice Boltzmann Method and Beyond
… It is therefore fundamental to have numerical methods able to capture phenomena at the microscopic scales and incorporate the effects in the macroscopic scale. The lattice Boltzmann method (LBM), a relatively new numerical method in computational fluid-dynamics (CFD), summarizes the …
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Simulation of the CRUD formation process using the Lattice Boltzmann Method
… problem due to CRUD deposits. A Lattice Boltzmann Method model is proposed for simulating thermal hydraulic and chemical conditions in the coolant and the formation process of the CRUD. Simulation results show that existence of CRUD in the nuclear reactors, not surprisingly, leads to an …
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Non-maximum entropy polymer elasticity, viscoelasticity and the lattice Boltzmann method
Various models of viscoelasticity exist based on continuum mechanics. In this work a statistical mechanical approach is taken to derive a new isotropic, hyperelastic, viscoelastic, incompressible constitutive equation for polymers. The result has been achieved by generating a novel physics for the …
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Ternary Flow Simulation Based on The Conservative Phase Field Lattice Boltzmann Method
… phase field (CPF) equations using the Lattice Boltzmann method (LBM). To effectively simulate the large-scale multi-phase physics, we developed an open-source software, IMEXLBM, which can be easily parallelized on both CPUs and GPUs without significant modifications to the code. We first …
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Mean-Field Free-Energy Lattice Boltzmann Method for Liquid-Vapor Interfacial Flows
… D2Q9, and three-dimensional (3D) D3Q19 lattice Boltzmann method (LBM). The three LBM models are validated successfully in a number of analytical solutions of liquid-vapor interfacial flows. Second, we have shown that the common bounceback condition in the literature leads to an unphysical …
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Lattice Boltzmann method for integrating the Bloch equation in muscle fibers and microvessels
… of this thesis is the development of a Lattice Boltzmann model of a single muscle fiber that can be parallelized in the future to include an ordered or disordered array of myofibrils and lipid domains inside the muscle fiber, and numerically simulate the multiphase transport of water, certain …
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VOF Based Multiphase Lattice Boltzmann Method Using Explicit Kinematic Boundary Conditons at the Interface
A VOF based multiphase Lattice Boltzmann method that explicitly prescribes kinematic boundary conditions at the interface is developed. The advantage of the method is the direct control over the surface tension value. The details of the numerical method are presented. The Saffman instability, …
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A Lattice Boltzmann method model of diffusion-weighted magnetic resonance imaging in skeletal muscle
… of skeletal muscle with noninvasive methods is paramount in developing effective therapeutic procedures for the elderly, such as physical exercise. Using special proton magnetic resonance imaging (MRI) protocols we can investigate non-invasively diffusion phenomena within skeletal …
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On Microstructural Analysis of Porous Media Existing in Fuel Cells Using the Lattice Boltzmann Method
… In order to achieve this; the widely used methodology for solving problems in porous media has been applied, the Lattice Boltzmann Method (LBM). LBM presents several advantages to solve problems where the microstructural architecture is complex. The introductory part presents the scope of …
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The Diffuse Bounce Back Lattice Boltzmann Method and its Applications on the Study of Fluid-Particle Interactions
… and environmental processes. The lattice Boltzmann method has been preferred for simulating particulate flows due to its advantages of easy implementation, micro- and mesoscopic physical insights and parallel algorithm. Both sharp and diffuse boundary treatments are studied to recover …
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Simulation of phase domain breakup and coalescence in strong shear and transient flows using lattice-Boltzmann method
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1998.
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Numerical Study on Droplet Formation and Cell Encapsulation Process in a Micro T-junction via Lattice Boltzmann Method
… using two- and three-dimensional lattice Boltzmann method (LBM). With the adoption of pseudo potential model, the LBM can accomplish the accurate tracking of the liquid-liquid or liquid-gas interface automatically. The two-dimensional simulation results agree favorably with experimental …
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High performance lattice boltzmann method yield-stress calculations based on intravital images of clot formation in live mice
… stresses are calculated via Lattice-Boltzmann fluid dynamic simulation based on in vivo microscopic images of laser injury-induced thrombi and simulation provided critical yield stress information. To our knowledge, this is the first image-based in-vivo assessment of blood clots …
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