Dissertation/Thesis Abstract

Simulation of Liquid Droplet in Air and on a Solid Surface
by Launglucknavalai, Kevin, M.S., University of California, Irvine, 2013, 64; 1537051
Abstract (Summary)

Although multiphase gas and liquid phenomena occurs widely in engineering problems, many aspects of multiphase interaction like within droplet dynamics are still not quantified. This study aims to qualify the Lattice Boltzmann (LBM) Interparticle Potential multiphase computational method in order to build a foundation for future multiphase research. This study consists of two overall sections.

The first section in Chapter 2 focuses on understanding the LBM method and Interparticle Potential model. It outlines the LBM method and how it relates to macroscopic fluid dynamics. The standard form of LBM is obtained. The perturbation solution obtaining the Navier-Stokes equations from the LBM equation is presented. Finally, the Interparticle Potential model is incorporated into the numerical LBM method.

The second section in Chapter 3 presents the verification and validation cases to confirm the behavior of the single-phase and multiphase LBM models. Experimental and analytical results are used briefly to compare with numerical results when possible using Poiseuille channel flow and flow over a cylinder. While presenting the numerical results, practical considerations like converting LBM scale variables to physical scale variables are considered. Multiphase results are verified using Laplaces law and artificial behaviors of the model are explored.

In this study, a better understanding of the LBM method and Interparticle Potential model is gained. This allows the numerical method to be used for comparison with experimental results in the future and provides a better understanding of multiphase physics overall.

Indexing (document details)
Advisor: Liu, Feng
Commitee: Dunn-Rankin, Derek, Wang, Yun
School: University of California, Irvine
Department: Mechanical and Aerospace Engineering - M.S.
School Location: United States -- California
Source: MAI 51/06M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Aerospace engineering
Keywords: Multiphase
Publication Number: 1537051
ISBN: 9781303065484
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