From data assimilation between time-resolved 3C-2D PIV and DNS to spectral analysis of 
the spatial evolution of energy-containing eddies in wall-bounded turbulent flows

Abstract: A tool consisting of two synchronised turbulent channel direct numerical simulations (DNS) has been developed. In this seminar two uses will be presented. One is associated with a study to investigate how time-resolved 3C-2D particle image velocimetry (PIV) can be assimilated with DNS to enable the enhancement and extension of the experimental measurements to yield fully resolved time-resolved 3C-3D wall-bounded turbulent flow fields, as well as the pressure statistics and spectra. The other is associated with a study how the structures in wall-bounded flows which contain most of the turbulent kinetic energy and which in fact are donors of energy to energy receiving structures evolve, once they are removed from the wall-bounded turbulent flow.

Bio: Julio Soria earned a B.E. (1st Class Honours) in 1983 and a Ph.D. in Mechanical Engineering in 1989 from the University of Western Australia, Perth, Western Australia. Following post-doctoral fellowships at CSIRO and Stanford University and NASA Ames Research Centre, he became a Research Scientist at CSIRO in Melbourne in 1991 and promoted to Senior Research Scientist in 1992. In 1993, he was appointed as a Senior Lecturer at Monash University, Melbourne, Victoria. He was promoted to Reader in 1998 and to Professor with a Personal Chair in Mechanical Engineering in 2000. He is the Director of the Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC) at Monash University, which he founded in 1994. His research interest is in Fluid Mechanics, particularly in the physics and control of turbulent shear flows. He uses physical experiments and direct numerical simulation to investigate fluid physics. He currently focuses on turbulent boundary layer flows, sub-sonic and super-sonic transitional and turbulent jet flows, non-intrusive optical experimental measurement methods, and direct numerical simulations. He has authored over 600 papers.

Julio Soria is a Fellow of the Australasian Fluid Mechanics Society, an Associate Fellow of the American Institute of Aeronautics and Astronautics, and a member of the American Physical Society and EUROMECH. He is an Associate Editor of Theoretical and Computational Fluid Dynamics and serves on the editorial advisory board of several scientific journals, including Experiments in Fluids and Experimental and Thermal Fluid Science.