1. Professor, Dept. of Applied Mathematics, Defence Institute of Advanced Technology (Deemed Univ.), Girinagar, Pune 411025, India; formerly, Senior Research Officer, Mathematical Modelling Centre, Central Water and Power Research Station, Khadakwasla, Pune 411024, India (corresponding author).
2. Project Engineer, Centre for Energy, Indian Institute of Technology Jodhpur, Ratanada, Jodhpur 342011, India.
3. Professor, Fluid and Experimental Mechanics Division, Dept. of Engineering Sciences and Mathematics, Lulea Univ. of Technology, Sweden.