Abstract
We have developed a fully parallel C++/MPI based simulation code for variable-density particle-laden turbulent flows. The fluid is represented through a uniform Eulerian staggered grid, while particles are modeled using a Lagrangian point-particle framework. Spatial discretization is second-order accurate, and time integration has a fourth-order accuracy. Two-way coupling of the particles with the background flow is considered in both momentum and energy equations. The code is fully modular and abstracted, and easily can be extended or modified. We have considered two different boundary conditions. We have also developed a novel parallel linear solver for the variable density Poisson equation that arises in the calculation.
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