Dans la série d’ateliers techniques du Programme FONCER Génie Par la Simulation intitulée « Projets GPS et études de cas », le Prof. Bruno Blais (GCH - Polytechnique) donnera une présentation intitulée « Introduction to high-order computational fluid dynamics ».
Résumé de la présentation:
"High-order numerical methods for Computational Fluid Dynamics (CFD) have the capacity to yield the same results as second-order scheme in greatly reduced computational time, especially for complex geometries which contain curvatures. They are defined as numerical scheme having a convergence rate in space that is higher than two (in the sense of L2 norm). In the context of continuous and discontinuous Galerkin methods, they have demonstrated their intrinsic high potential to accurately simulate external flows, vortical flows, turbomachinery and wall-bounded turbulence. Their use in the context of chemical engineering has been thus far non-existent. This is caused by the lack of available commercial or accessible open source software that leverages the capacity of high-order schemes for the incompressible flows encountered in chemical engineering.
In this presentation, we present a motivation for an increased use of high-order methods in CFD. Furthermore, we introduce a new open-source high-order CFD software: Lethe. Lethe is built upon the well-established deal.II library, which is an open source framework for finite element modelling. Through deal.II, Lethe uses state-of-the-art linear algebra libraries (Trilinos), allowing it to leverage high performance computing. Finally, we conclude by a benchmark Direct Numerical Simulation (DNS) of a turbulent Taylor-Green vortex and compare our results with reference results obtained through spectral methods. We conclude by presenting a roadmap of the future chemical-engineering related features to come."
La présentation pourra être suivie en web-diffusion (VIA). Envoyez un message à l'organisateur pour obtenir un lien.
Bienvenue à tous et à toutes.
