SOD2D: A GPU-enabled Spectral Finite Elements Method for compressible scale-resolving simulations

• DOI: 10.1016/j.cpc.2023.109067
• Publication Date: 2023-12-21T18:11:49Z
• Authors: L. Gasparino; F. Spiga; O. Lehmkuhl
• Keywords: Large-Eddy Simulation; Numerical diffusion; Spectral method

As new supercomputer architectures become more heavily focused on using hardware accelerators, in particular general-purpose graphical processors, it is therefore relevant that algorithms for computational fluid dynamics, especially those targeting scale-resolving simulations, be designed such a way as to make efficient use of hardware. In this paper, we propose one hardware-accelerated Continuous Galerkin Finite Elements model, aimed at handling simulations turbulent compressible flows over complex geometries. model intended Large-Eddy and Direct Numerical necessary the resulting scheme introduces only small amounts artificial (numerical) diffusion stabilization purposes. We achieve through combination Spectral Elements, operator splittings convective term, Entropy Viscosity adapted spectral elements scheme. The paper will present algorithm, how made work efficiently results obtained demonstrate its high-accuracy capabilities.