**Meet the editor**

Professor Ramesh K. Agarwal is the William Palm Professor of Engineering and the director of Aerospace Research and Education Center at Washington University in St. Louis, USA. From 1994 to 2001, he was the Sam Bloomfield Distinguished Professor and Executive Director of the National Institute for Aviation Research at Wichita State University in Kansas. From 1978 to 1994,

he worked in various scientific and managerial positions at McDonnell Douglas Research Laboratories in St. Louis; he became the Program Director and McDonnell Douglas Fellow in 1990. Dr. Agarwal received Ph.D. in Aeronautical Sciences from Stanford University in 1975, M.S. in Aeronautical Engineering from the University of Minnesota in 1969, and B.S. in Mechanical Engineering from Indian Institute of Technology, Kharagpur, India in 1968. Professor Agarwal has worked in Computational Fluid Dynamics, Computational Electromagnetics and Acoustics, Rarefied Gas Dynamics and Hypersonic Flows, Flow Control and, more recently, Sustainable Air and Ground Transportation.
