Postdoctoral Research Fellow
Department of
Mathematical Sciences, George Mason University
Videos
Top: time evolution of the streamwise velocity field in the near-wall region of
wall-bounded turbulent flow;
bottom: two dimensional slice of the streamwise velocity evolving in the wall-normal and streamwise directions.
In a typical aerodynamics setting, these chaotic dynamics can occur in the first
6 millimeters
above the aircraft wing.
Visual comparison of experiment and 3D simulation of thermal induced phase separation of gelatin and polyethylene-glycol. The
spheres are approximately 50 microns in diameter.
Experiment performed and captured by
Dr. Vishwesh Shah
of the
Di Carlo Bioengineering Lab;
simulation images courtesy of
Dr. Eric Hester.
Cation concentration (top) and electric potential (bottom) in chaotic electroconvective flow.
Time evolution of the external electric field (black), fluid velocity (green/yellow), and charge distribution (blue/red) in an electrolyte model.
The generation of the counter-rotating vortices in the presence of a time-varying electric field is referred to as
alternating-current induced charge electro-osmosis.
Fluctuating hydrodynamics model of a room temperature ionic liquid (RTIL)
1-butyl-3-methylimidazolium hexafluorophosphate [DMPI+][F6P-] between two oppositely charged electrodes. The
brain-like patterns result from a balance between electrostatic forces and interfacial tension.
Whitewater in the Merced River in Yosemite National Park, featuring multiphase, free-surface turbulent flow.
Top: turbulent mixing of milk and iced thai tea; bottom: vortex dynamics in a rising plume of smoke. Photography by Isaac Burns.