1. Department of Mechanical Engineering, Indian Institute of Technology, Bombay 400076, India e-mail:
2. Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697 e-mail:
3. Mechanical and Aeronautical Engineering, University of California, Davis, CA 95616 e-mail:
4. Research and Development Establishment (Engineers), Defense Research & Development Organization (DRDO), Pune 411015, India e-mail: