Resumo

BARTON, Iain. Simulation of particle trajectories in turbulent flow over a backward-facing step. R&D j. (Matieland, Online) [online]. 1999, vol.15, pp.65-78. ISSN 2309-8988.

The stochastic Monte Carlo scheme is an excellent method to investigate turbulent particle dispersion albeit with a high computational cost. It is a popular method used in conjunction with the k-e turbulence model. The traditional stochastic technigue tends to fail for simulations of heavy particles probably because the crossing trajectories effect, the inertia effect, and the continuity effect are ignored. Models attempting to incorporate two of these effects have been included into the present stochastic technique. The majority of the studies using the stochastic Monte Carlo scheme have considered axial-symmetric jets. The present results, however, investigate a simulation for dilute particulate turbulent flow over a backward-facing step. Satisfactory agreement is achieved with experimental data. The integration of the particle trajectories was achieved using a recently developed predictor-corrector Lagrangian tracking scheme.

        · texto em Inglês     · Inglês ( pdf )