简介: Fast, scalable, DNS solvers in complex geometries

报告摘要：

As the computing power available for CFD simulations is rapidly increasing, there is an increased interest in the development of new algorithms capable of fully taking advantage of the new massively parallel architectures.

In this talk, I will present solvers developed for the Direct Numerical Simulation of transitional and turbulent flows in complex geometries. Two solvers will presented, both based on the directionsplitting fractional step method recently proposed by J.-L. Guermond & P. Minev. The first one leverages a staggered-grid arrangement and can deal with arbitrarily complex geometries by an MLS treatment of immersed boundaries. The second one, still under development, exploits a colocated coupling between velocity and pressure, leading to an extremely fast solver full of potential for future development.

Test cases showing the accuracy and performance of both methods will be presented.

报告人简介：

Franco Auteri is Associate Professor of Fluid Mechanics in Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano. He holds a Master Degree in Aeronautical Engineering with honours. In 2000, he received his Ph.D. in Aerospace Engineering from Politecnico di Milano. After that he has been on the faculty at Politecnico di Milano. He served as referee for Physical Review Letters, Journal of Fluid Mechanics, Physics of Fluids, etc. His research interests are broadly on the experimental and computational fluid dynamics, the fluid-structure interaction problems, the hydrodynamic stability and turbulent flows, and the applied aerodynamics.