(8月28日10:00)Emerging instabilities and bifurcations from deformable fluid interfaces in the inertialess regime
报告题目：Emerging instabilities and bifurcations from deformable fluid interfaces in the inertialess regime
报告人: Dr. Lailai Zhu
In this talk, He will present two studies regarding the dynamics of droplets in the creeping flow, focusing on the arising instability and bifurcation phenomena. The first work investigates a buoyancy-driven droplet translating in a quiescent environment and the second a particle-encapsulating droplet in shear flow. Three-dimensional simulations based on versatile boundary integral methods were employed to explore the intriguing instability and bifurcation phenomena in the inertialess flow. In the first work, a non-modal stability analysis was performed to predict the critical condition of instability; and in the second, a dynamic system approach was adopted to model and characterize the interacting bifurcations.
Dr. Lailai Zhu is a postdoctoral researcher in the complex fluids group of Prof. Howard Stone at Princeton University. He received his BEng degree (2006) in Naval Architecture and Marine Engineering from Harbin Engineering University, MEng degree (2009) in Fluid Mechanics from Tsinghua University. After obtaining his PhD degree (2014) in Engineering Mechanics from KTH, Sweden, he started to work as a postdoc at EPFL, Switzerland on the droplet dynamics in microfluidic devices. His research interests include hydrodynamics of swimming microorganisms, low-Reynolds number fluid-structure interactions, micro-fluidics and boundary integral method. He has published several articles in J. Fluid Mech, Phys. Fluids and Phys. Rev. Lett.