Fully resolved simulation of particles transported in a turbulent flow

Investigatordoc. Ing. Zdeněk Chára, CSc.
Duration2015 - 2019

The fully resolved simulation of the particle-fluid interaction based on the lattice Boltzmann method (LBM) is developed. The particles are transported in a turbulent flow in an open channel. The entropic extension of the LBM is used to treat the high Reynolds number process as it guarantees unconditional stability of the computation. The computational demands of the fully resolved simulation are compensated by deployment of CUDA GPU technology. To assess accuracy of the LBM approach its results are validated against experimental observations. The captured particle movements and trajectories are compared with the motions and trajectories produced by the LBM simulation. The influence of the presence of the particles on the modulation of the turbulence is examined by comparison of the single and dispersed phase.