Levich Institute Seminar Announcement, 10/09/2012
Tuesday, 10/09/2012
2:00 PM
Steinman Hall, Room #312
(Chemical Engineering Conference Room)

Dr. Kevin Connington
City College of CUNY
Levich Institute

"Multi-component Lattice Boltzmann Simulations with Particle-Interface Interactions"


ABSTRACT


The presence of solid particles can play an important role in many multiphase/multi-component flows. Particles in the interface of an emulsion can stabilize it, preventing breakup. In this talk, I will discuss the extension of an existing free energy-based multi-component Lattice Boltzmann Method (LBM) to handle the transport of immersed solid particles of a finite size. The LBM uses a diffuse interface approach to model the interaction between different fluid components, and there is a two-way coupling between the particle and fluid motion. The force on a particle is computed by Momentum Exchange (ME), an algorithm unique to the LBM. However, a supplemental term must be introduced to account for the force of the interface on the particle. I will present a validation for the inclusion of this forcing term, and demonstrate the capability of the code by discussing simulations of drop impact with immersed solid particles and the rupture of a liquid bridge containing particles.

BRIEF ACADEMIC/EMPLOYMENT HISTORY
  • 2010-Present: Postdoctoral Research Associate, Levich Institute, CCNY
  • 2009: Ph.D. Mechanical Engineering, The Johns Hopkins University
  • 2006-2008: Visiting Scholar, Earth and Environmental Sciences Group, Los Alamos National Lab
  • 2003: B.S. Mechanical Engineering, The Johns Hopkins University

RECENT RESEARCH INTERESTS:

  • Multiphase Flow Modeling with the Lattice Boltzmann Method
  • Superhydrophobic Surfaces
  • Particle-laden Flows
  • Parallel Computing




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