Levich Institute Seminar Announcement, 04/21/2009
Steinman Hall, Room #312
(Chemical Engineering Conference Room)
Dr. Joseph Calantoni
Naval Research Laboratory
Stennis Space Center, Mississippi
"Discrete Particle Model for Nearshore Sediment Transport "
Predicting the evolution of nearshore bathymetry from the shoreline, offshore to the point where waves begin breaking, is a difficult problem of significant importance, with economic, legal, engineering, scientific, and military implications for coastal environments. Despite the accessibility of the phenomena of interest, namely the motion of sand under waves on the beach, traditional approaches to modeling beach evolution are not robust mainly because of our failure to understand the fundamental interaction forces driving sediment transport. Using a discrete particle (or element) model (DPM), we perform computer simulations that describe the collective and individual motions of sediment grains immersed in fluid. The DPM attempts to emulate the physics of the sea floor, at the fluid-sediment interface, in shallow water under forcing from waves and currents. A brief description of the technique will be followed by model-theory comparisons, model-data comparisons, and some selected research applications.
BRIEF ACADEMIC/EMPLOYMENT BACKGROUND:
CURRENT RESEARCH INTERESTS:
Research interests primarily focus on the simulation of the fluid-sediment boundary layer in the
coastal ocean from sediment transport to acoustic propagation.