Raj P. Chhabra has been a Professor of Chemical Engineering at the Indian Institutes of Technology in Kanpur and in Ropar for the past 38 years. After receiving his B.S. and M.S. in Chemical Engineering from the University of Roorkee (now the Indian Institute of Technology, Roorkee) and the Indian Institute of Science, Bangalore, respectively, he obtained his Ph.D. from Monash University in Melbourne (Australia). He has been a visiting professor at several universities, including the University of New South Wales, Sydney; Clarkson University, Potsdam (NY); The State University of New York at Buffalo; Ecole Polytechnique de Montreal; Universite de Nantes, Nantes; Technology University of Lodz, Lodz (Poland); China University of Petroleum-Beijing and the Cape Peninsula University of Technology, Capetown. He is a Professor of Chemical Engineering at Shiv Nadar University. His current teaching and research interests are in the general areas of non-Newtonian fluid mechanics, multiphase flows, and research methods and skills. He has 10 books, 35 invited book chapters and reviews, and over 350 technical papers to his credit. He is a recipient of the Amar Dye Chem (1988) and the Herdillia (1996) awards (of the Indian Institute of Chemical Engineers) for excellence in research. He is a Fellow of the Indian National Academy of Engineering of the Indian National Science Academy. Swati A Patel is an Assistant Professor of Chemical Engineering at the Indian Institute of Technology at Ropar (Punjab). After earning her doctorate in Chemical Engineering from the Indian Institute of Technology in Kanpur, she worked as a post-doc researcher at the New Jersey Institute of Technology before joining the Indian Institute of Technology Ropar in May 2017. Her current research interests are in the broad areas of CFD of non-Newtonian multiphase flows and particulate product engineering. She has published numerous technical papers in this field.