A new paradigm towards the certification of numerical solutions for turbulent flows in aeronautics thanks to anisotropic mesh adaptation
This talk will present the recent progress made at Inria on anisotropic mesh adaptation for RANS simulations for aerospace simulations. We will focus on drag prediction, high-lift prediction and turbomachinery applications. I will first present the considered flow solver and the adaptive meshing strategy. Then, I will present several error estimates for RANS simulation (feature-based, goal-oriented) that will be compared. I will describe how in practice the mesh adaptation loop is performed and the benefits of doing it like this (multigrid-like effect, convergence study for free, ...). In the presented exemples, I will show the early capturing (convergence) of the mesh-adaptive solution process and that we obtain mesh-independent results without any human intervention ie automation and whatever the initial mesh prescription.