TITLE:

VOLUME-OF-FLUID (VOF) SIMULATIONS OF DROPS AND BUBBLES (No. 50)

DATE:

Friday, September 3rd, 2004

TIME:

3:30 PM

LOCATION:

GMCS 214

SPEAKER:

Ali Nadim, School of Mathematical Sciences, Claremont Graduate University

ABSTRACT:

Multiphase fluid flows occur in numerous technological and environmental applications. Simulation of such flows is challenging because of presence of evolving interfaces. The volume-of-fluid (VOF) method represents one of the several successful techniques for approaching such problems. After reviewing the VOF method, we present a piecewise linear interface construction (PLIC) scheme, which we implement within RIPPLE, a 2D Eulerian VOF code that uses the continuum surface force (CSF) model to account for surface tension effects. We validate the code by comparing the evolution of the shape of a bubble and its terminal velocity with experimental data for different size bubbles. We also consider the problem of collapse of an initially cylindrical water column and that of contact-line driven motion of droplets along a solid surface using this method. [Joint work with J. Dai and J. Sterling

HOST:

Jose Castillo

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