中文摘要：

没有使用任何狂暴的模型， athree 维的煤气固体的二阶段的狂暴的喷气的直接数字的模拟被有限体积方法执行。粒子与的分散上的 Theeffects 不同司烧由狂暴的结构的过渡行为的数字被调查。生产高分辨率的结果并且减少计算和存储，部分步的设计算法被用来解决煤气的阶段液体的管理方程。低存储的、三顺序的 Runge-Kutta 计划被用于时间集成。粒子的管理方程在 Lagrangian 框架被解决。Thesenumerical 计划被在流动地和相关试验性的数据的统计结果之间的好协议验证。在粒子分散的学习，由明智的旋涡组织的跨度的粒子分散上的效果是突出的，这被发现。粒子分散的新行为也在流动领域的进化期间被观察，即粒子分散的过渡现象与小、最中间的 okes 数字为粒子发生。

英文摘要：

Without using any turbulent model, direct numerical simulation of a three-dimensional gas-solid two-phase turbulent jet was performed by finite volume method. The effects on dispersion of particles with different Stokes numbers by the transitional behavior of turbulent structures were investigated. To produce high-resolution results and reduce the computation and storage, the fractional-step projection algorithm was used to solve the governing equations of gas phase fluid. The low-storage, three-order Runge-Kutts scheme was used for time integration. The governing equations of particles were solved in the Lagrangian framework. These numerical schemes were validated by the good agreement between the statistical results of flow field and the related experimental data. In the study of particle dispersion, it was found that the effects on particle dispersion by the spanwise vortex structures were prominent. The new behaviors of particle dispersion were also observed during the evolution of the flow field, i.e. the transitional phenomenon of particle dispersion occurs for the particles with small and intermediate Stokes numbers.