Professor Yantao Yang
Peking University (CHN)
A numerical framework for multi-medium and multi-component incompressible flows and its applications in natural and engineering systems
Abstract:
In many natural environments and engineering applications the fluid flows are coupled with multiple scalar components and complex porous medium, such as sea ice growing and heat and mass transport in underground porous strata. The challenges in simulating such complex flows include dealing with dynamic coupling between momentum field and scalar fields, tracking the evolution of fluid-solid or fluid-porous medium interfaces, and the phase-changing and other processes. Here we present a numerical framework for simulating such systems. A unified set of governing equations is constructed to automatically describe the incompressible flows in fluid and macro scale motions in porous medium, as well as the dynamic evolution of porous layers. The method is successfully applied to simulating sea ice growing, the heat-flux enhancement in turbulent convection and the turbulent drag reduction in channel flows by inhomogeneous porous layers.
Brief Bio:
Yantao Yang is now a Professor at School of Mechiancs and Engineering Science, Peking University, Beijing, China. He received both his Bachelor degree in Theoretical and Applied Mechanics and his Ph.D degree in Fluid Mechanics from Peking University in 2004 and 2009, respectively. After conducting Postdoc researches at Center for Applied Physics and Technology of Peking University and at Physics of Fluids Group, University of Twente, the Netherlands, he returned to PKU in 2017 and joined the Faculty of Fluid Mechanics. Prof. Yang's research interests include turbulence and computational fluid dynamics, especially in oceanic and geophysical turbulence, multiphase turbulence, bio-flow simulations and flow controls. He has published more than 60 journal papers in JFM, PNAS, PRL, PRF, etc. He is the recipient of National Science Fund for Distinguished Young Scholars of NSFC and Overseas High-level Young Talent Recruitment Program of China.