”Aerodynamics of sports balls and badminton shuttle-cock”
Speaker: Prof. Sanjay Mittal, Professor, Aerospace Engineering, IIT Kanpur
Date & Time: Monday, 30 September 2019, 3:00 – 4:00 PM
Venue: Auditorium, Department of Aerospace Engineering, IISc- Bangalore
Abstract: The aerodynamics of sports projectiles is investigated via experiments in a low speed wind tunnel as well as CFD. Force measurements are carried out for various speeds ranging between 15 m/s to 75 m/s on actual balls used in various sports. The role of seam in the swing and reverse-swing in a new ball and as it gets old is investigated. It is shown that the formation of a Laminar Separation Bubble (LSB) is crucial to the lateral forces that the ball may experience. Surface pressure measurements, oil flow visualization and 2D-PIV are carried out to probe the flow physics. Synthetic and duck-feather models of a badminton shuttlecock are studied to understand the difference in their trajectories.
Speaker Biography: After finishing his undergraduate program in Aeronautical Engineering, at IIT Kanpur in 1988, Sanjay Mittal enrolled for graduate studies at University of Minnesota, USA. After a stint at the Army High Performance Computing Research Center, Minneapolis as a research fellow, he returned to IIT Kanpur in 1992 as an Assistant Professor in his home Department. He was recently felicitated for completing 25 years of distinguished service at IIT Kanpur. Sanjay is a regular at the badminton courts at IITK and has interest in understanding sports aerodynamics. His other research interests include aerodynamic shape optimization, bluff body flows, traffic modeling, flows in air intakes, fluid-structure interactions, transitional flows and low-speed experimental aerodynamics.
All are welcome.
High-Tea: 4:00 PM
Note: AE Distinguished Lecture series is mandatory for all students of the AE Dept.
Date/Time
Date(s) - 30/09/2019
4:00 pm - 5:00 pm
Aerospace
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