PhD project: Study of dense turbulent sediment transport by means of fully resolved simulations

PhD student: Pedro S. Costa MSc

Project start: February 2013

Project description:
Turbulent flows laden with solid particles are found in many applications, often with a high particle volume fraction. Examples are sediment transport through pipes in the dredging industry and bed erosion and sediment transport in rivers. The dynamics of such flows is poorly understood due to complex particle-turbulence interactions and particle-particle/wall collisions. The goal of this PhD project is the development of a state-of-the-art method for fully resolved Direct Numerical Simulation (DNS) of this kind of flows. Starting point is a computationally efficient, second-order accurate Immersed Boundary Method (IBM) for particulate flows [W.-P. Breugem, JCP 231:4469-4498, 2012]. This method will be extended to accommodate particle collisions with physical realism and applied to turbulent sediment transport in plane channels.