F7 - High Speed Video


Organizers: M. Mansoor & T. Truscott

Mujtaba Mansoor is a postdoctoral researcher at Utah State University's Splash Lab where he is working in collaboration with the Office of Naval Research on the swarming of living organisms and their replication by autonomous robot programing. He earned his Master's degree (2012) and PhD (2016) from King Abdullah University of Science and Technology (KAUST). His research focuses on free-surface flows, cavitation, laser ablation, droplet splashing, granular flows, squeeze flows, and coating flows. Of particular interest to him has been the classical water-entry problem relevant to several naval and military applications such as in air-to-sea ballistic missiles, slamming of ships, and seaplane landings.


Tadd Truscott 's current research interests are in fluid dynamics, novel imaging and experimental methods. By merging different areas of research, he works on problems such as three-dimensional flow field dynamics of rising spheres and cavitation. Tadd received his B.S in mechanical engineering from the University of Utah, and then attended Massachusetts Institute of Technology for Ph.D. in Ocean and Mechanical Engineering. He has been an assistant professor at Brigham Young University and is presently an assistant professor at Utah State University.


Contacts:
mujtaba.mansoor@gmail.com
taddtruscott@gmail.com

With the advent of digital cameras the high speed industry has changed considerably over the past 20 years. With this change has come exciting new and easy to use tools to improve measurements and observations of many different phenomena. In addition, these tools have put observation and experimentation abilities into the hands of scientists and engineers that once could only dreamed of. This forum is dedicated to the merger of high-speed imaging technologies and the manipulation of high-speed data to unravel physical phenomena at macroscopic to subatomic levels. Whether your group has developed new high-speed imaging tools or data manipulation packages from mechanical hardware to software, this forum is for you.


Ejecta sheet evolution produced by the laser ablation of a free-surface at atmospheric pressure. The image is taken at t = 1.4µs from a recording at 5 million frames per second where the shock wave is indicated by red arrows. The exposure time is 20 ns. The dark regions in the bottom corner are due to vignetting effects of the lens. The average shock wave speed over the duration of 5 µs is estimated to be 602 m/s, while the very early motions in the first 600 ns are much more rapid with a speed of 1.75 km/s (Mach=5)