DLBFoam: An open-source dynamic load balancing model for fast reacting flow simulations in OpenFOAM
Computational load imbalance due to direct integration of chemical kinetics is a well-known performance issue in parallel reacting flow simulations. We introduce an open-source dynamic load balancing model to address this problem within OpenFOAM, an open-source C++ library for Computational Fluid Dynamics (CFD)...
Due to the commonly applied operator splitting practice in reactive flow solvers, chemistry can be treated as an independent stiff ordinary differential equation (ODE) system within each computational cell. As a result of highly non-linear characteristics of chemical kinetics, a large variation in convergence rates of ODE integrator may occur, leading to a