Topic:High-Speed Imaging of Drops and Bubbles

Reporting time: November 22 (Tuesday), 2:00 - 3:00 pm

Report Location:  2nd North Building, room 308

 Report Introduction:
        Drops and bubbles constitute the fundamental form of fluids at small scales, due to the action of surface tension. Therefore, understanding their dynamics has a wide range of implication. One of the challenges is to understand their extremely fast motion at small scale. With the Recent progresses in high-speed imaging techniques, it has become possible to explore a new world at frame rates up to 10 million frames per second.We first focus on new phenomena responsible for splashing and air entrapment during drop impact on a liquid pool, then Look at the peculiar dynamics of a drop of nano-particles dispersion impacting on a solid surface. Finally, we look at the partial coalescence of bubbles in a high-pressure chamber.

About the Speaker:
        Prof. Marie-Jean Thoraval obtained his PhD in Fluid Mechanics from KAUST (Saudi Arabia) in 2013. He then worked as a postdoc at the Physics of Fluids group in the University of Twente (The Netherlands). He is now professor at Xi ' An Jiaotong University since 2015. His research focuses on interfacial flows, including drops and bubbles, combining the fastest high-speed cameras together with large parallel numerical simulations.