Miltiadis V. Papalexandris is Professor in the Institute of Mechanics, Materials & Civil Engineering of the Universitécatholique de Louvain (UCL), in Louvain-la-Neuve, Belgium. He received an MSc degree in Naval Architecture & Marine Engineering from the National Technical University of Athens and MSc and PhD degrees in Aeronautics from the Graduate Aerospace Laboratories of the California Institute of Technology. Soon after the completion of his PhD, he joined the Engineering Staff of NASA's Jet Propulsion Laboratory. While at NASA, he worked mainly on thermal control and optical modeling of space telescopes, including the James Webb Space Telescope (JWST) and the Laser Interferometry Space Antenna (LISA).

In 2002 he became a faculty member at UCL where he remains until now, having being promoted to the rank of Professor in 2010. The research interests of Prof. Papalexandris lie primarily on the fields of theoretical and computational fluid dynamics with particular emphasis on the fundamentals of multi-phase flows complex fluids, and reacting flows. The activities of his group cover: i) development of models for the flows of interest and their mathematical and numerical analysis, ii) algorithm development and implementation for these models, and iii) detailed numerical studies and simulations of the flows of interest via high performance computing. His awards include, among others, the Russel Vought Fellowship of Caltech, the William Balhaus Dissertation Prize of Caltech, NASA's Space Act Award, and the NOVA Award of Excellence of NASA. Also, Prof. Papalexandris has been elected an Associate Fellow of the American Institute of Aeronautics and Astronautics (AIAA). His professional activities include: organizing and co-chairing the Eurotherm-84 Conference on Thermodynamics of Phase Changes in 2009, reviewing for more than 25 scientific journals and for several research funding agencies. Currently he is serving as vice-president of the Belgian Section of the Combustion Institute and on the Belgian National Committee for Theoretical and Applied Mechanics.