Joseph Mathew, Chair and Professor, Department of Aerospace Engineering, Indian Institute of Science

Abstract:

The first part is on the LES method that we have used and understood over the past two decades with a sequence of theses beginning with incompressible, variable density, compressible subsonic and then supersonic flows with shocks.  The method will be described in brief, including that for shock capturing with a few examples of a posteriori performance.  Features of LES of round jets are discussed in some detail because it is a direct validation for the twin jets to follow.

We have new results for twin round jets for which intrinsic scales have been found which are connected by simple relations to input parameters.  This scaling provides a way to design new twin jet configurations.  It also suggests possible new design rules for multiple jet configurations.

Bio:

Dr. Joseph Mathew is Professor and Chair of the Department of Aerospace Engineering, Indian Institute of Science, Bangalore.  He obtained his B. Tech from the Indian Institute of Technology Madras (1984), MS from the University of Missouri-Rolla (1986) and PhD from the Massachusetts Institute of Technology (1990), in Mechanical Engineering.  After post-doctoral positions at ICOMP, NASA Glenn Research Center, Cleveland, and National Aerospace Laboratories, Bangalore, he joined IISc as an Assistant Professor in 1995.  His research interests comprise Turbulence, transition, stability and wave propagation, DNS/LES and applications to turbomachinery, aeroacoustics and combustion.  He has had research collaborations on LES with TU-Munich (2000-2011) and AFRL, Dayton (2004-5).  He is a Fellow of the Indian National Academy of Engineering and an Associate Fellow of AIAA. He has been closely associated with ASME Gas Turbine conferences in India, serving as Review Chair in 2013 and 2015, and was Chair of the Executive Committee for ASME Gas Turbine India 2017-2019.  He is a member of the Board of INSPACe for promotion and authorization of Space activities.