High resolution interface representation in numerical flow simulations using finite element methods

Bärbel Janssen
Department of High Performance Computing and Visualization
School of Computer Science and Communication
KTH
Stockholm

Abstract:

During the last few years, the numerical simulation of large problems involving turbulent flow and multiphysics has gained momentum, as software and hardware have become increasingly powerful. Still, the development of robust and efficient numerical methods for applications in Computational Fluid Dynamics (CFD), remains a key challange.

In my research, a method is developed where the mesh is fixed and the interface between fluids, or fluid and solid, is free to cut through mesh cells. No alignment of the underlying mesh with the interface will be necessary. This approach performs a local modification of the finite element method. Due to the locality of this method, it is easy to implement in a high perfomance setting.