Parallelisation of the Lagrangian model in a mixed Eulerian–Lagrangian CFD algorithm

Abstract

This manuscript presents an algorithm implemented in a commercial computational fluid dynamics (CFD) code for parallelisation of the Lagrangian particle tracking model in a mixed Eulerian–Lagrangian CFD algorithm. The algorithm is based on the domain decomposition parallelisation strategy and asynchronous message passing protocol. The methodology is tested on two industrial CFD test cases and the parallelisation results are presented. Further, it is discussed how the parallel efficiency of the runs can be improved by adopting the domain decomposition scattering technique.