P. BALACHANDRAN (Ph.D., IIT Madras) is a Senior Scientist and a Divisional Head, Propulsion Research Division in LPSC—Indian Space Research Organisation (ISRO), Trivandrum. Dr. Balachandran has an experience of three decades in teaching and conducting research works, and is also a member of various scientific bodies of India. He has published a number of research papers in various national and international journals. Apart from Fluid Mechanics, his areas of interest are Gas Dynamics, Thermodynamics, Heat Transfer and Refrigeration.