Particle-Induced Modulation and Dispersion of Inertial Particles in Turbulent Wall Flows

Abstract The motion of inertial particles in wall-bounded turbulence has received significant attention thus far but many open questions remain. For example, the well-known accumulation of these particles in the viscous sublayer can be attenuated by the presence of rough walls. The presented research will firstly focus upon the motion of particles in the scenario of dilute particle loading and some modelling of the wall-directed migration of particles will be discussed.  Thereafter, the number of particles will be dramatically increased, and modulation of the turbulent flow field with intermittent turbulent structure depletion is suggested as a possible future pathway to drag reduction.  

Dr. Tony Zahtila is a postdoctoral researcher at the Stanford Center for Turbulence Researcher. He obtained his BSc, MEng, and PhD degrees from the University of Melbourne. His PhD was supervised by Professor Andrew Ooi and A/Professor Jimmy Philip.