In this paper, the evolution of eddy structures in the backward-facing step flow was studied by using large eddy simulation.
本文对后台阶分离流动中涡结构的演变进行了大涡模拟，研究了流场结构的变化规律。
Backward-facing step flow is not only a typical example of complex separated flow of fluid dynamics, but also a class of common flow phenomena in many engineering fields.
后台阶流动不仅是流体力学中复杂分离流的一个典型例子，同时也是许多工程领域中一类常见的流动现象。
The re-circulation and reattachment process in backward-facing step flow is investigated using large eddy simulation (LES).
应用自主开发的大涡模拟程序数值模拟研究了后台阶流动中再附着过程的演变。
It is indicated that the flow field over a backward facing step possesses simultaneously the characteristic of non-steady flow and steady flow.
后向台阶流的流场同时具有非定常性和定常性的特性。
We give a discretization method for the viscous terms of the two-dimensional shallow water equations , and the obtained discretized equations are used to solve the backward-facing step flow problem.
对二维浅水方程粘性项给出了一个离散方案，并将其应用于求解后台阶流动问题。
The characteristics of the flow over a backward facing step are studied by use of a 3 D viscous flow mathematical model.
利用三维粘性流动数学模型，研究了台阶突扩流动的三维特性。
The flow over a backward facing step of an annular tube is a very important part of air drilling, determining the detritus going back to the ground successfully.
环空管道后台阶突扩流动是空气正循环钻井过程中十分重要的关键部分，直接决定了钻探岩屑是否能够顺利上返地面。
The flow over a backward facing step of an annular tube is a very important part of air drilling, determining the detritus going back to the ground successfully.
环空管道后台阶突扩流动是空气正循环钻井过程中十分重要的关键部分，直接决定了钻探岩屑是否能够顺利上返地面。
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