Towards a Robust Discontinuous Galerkin Solver for LES of Multiphysics Flows and Combustion Based on Loci Programming

Lv, Y., Collins, E. M., Bhushan, S., & Luke, E. (2019). Towards a Robust Discontinuous Galerkin Solver for LES of Multiphysics Flows and Combustion Based on Loci Programming. AIAA Scitech 2019 Forum. San Diego, CA: AIAA. 11. DOI:10.2514/6.2019-2168.

Abstract

This paper presents our recent efforts to develop a new solver for high-fidelity simulations of multiphysics flows utilizing the Loci computational framework. This solver is based on the high-order discontinuous Galerkin discretization scheme and implements several previously developed algorithms designed to address solver-robustness issues and other numerical challenges associated with variable thermodynamics and stiff chemical source terms. The accuracy of the solver implementation has been verified in numerical test by considering the vortex transport and Taylor-Green vortex cases, and benchmarked against an existing CFD solver. The solver’s capability for performing turbulent combustion simulations is demonstrated by considering a piloted DME jet flame.