中文摘要：

微时间并且在二阶段的狂暴的隧道流动的宏时间规模为液体用直接数字的模拟和 Lagrangian 粒子轨道方法被调查 -- 并且粒子阶段分别地。两个阶段的 Lagrangian 和 Eulerian 时间规模用速度关联功能被计算。由于流动 anisotropy，微时间的规模不是有在大雷纳兹数字的理论评价的一样(各向同性) 骚乱。粒子阶段并且粒子看见的液体阶段的 Lagrangian 宏时间规模两个都依赖于粒子司烧数字。液体阶段 Lagrangian 不可分的时间规模从墙与距离增加，比粒子看见的那些时间规模长。Eulerian 不可分的宏时间规模在近墙的区域增加，但是在 out-layer 区域减少。动人的 Eulerian 时间规模也被调查，与 Lagrangian 相比，积分时间可伸缩，并且在对以前的大小和数字预言的好同意。为液体粒子，微 Eulerian 时间规模比在近的墙区域的 Lagrangian 长，从微 Lagrangian 时间放大的墙度过更长。Lagrangian 不可分的时间规模比 Eulerian 长。结果为进一步理解二阶段的流动物理并且特别为构造惯性的粒子分散的精确预言模型是有用的。

英文摘要：

The micro- and macro-time scales in two-phase turbulent channel flows are investigated using the direct nu- merical simulation and the Lagrangian particle trajectory methods for the fluid- and the particle-phases, respectively. Lagrangian and Eulerian time scales of both phases are cal- culated using velocity correlation functions. Due to flow anisotropy, micro-time scales are not the same with the theo- retical estimations in large Reynolds number （isotropic） tur- bulence. Lagrangian macro-time scales of particle-phase and of fluid-phase seen by particles are both dependent on particle Stokes number. The fluid-phase Lagrangian inte- gral time scales increase with distance from the wall, longer than those time scales seen by particles. The Eulerian inte- gral macro-time scales increase in near-wall regions but de- crease in out-layer regions. The moving Eulerian time scales are also investigated and compared with Lagrangian integral time scales, and in good agreement with previous measure- ments and numerical predictions. For the fluid particles the micro Eulerian time scales are longer than the Lagrangian ones in the near wall regions, while away from the walls the micro Lagrangian time scales are longer. The Lagrangian integral time scales are longer than the Eulerian ones. The results are useful for further understanding two-phase flow physics and especially for constructing accurate prediction models of inertial particle dispersion.