scale model flow

A computational fluid dynamics ( CFD) model was developed for describing the hydrodynamics of large scale sieve trays. A two-fluid model to simulate the three-dimensional velocity field of the gas-liquid two-phase flow on a sieve tray was presented.

运用CFD数值模拟方法，建立了大型筛板塔塔板上气液两相流双流体模型，数值求解了三维速度场分布。

Basing on the theory of similarity, the similarity law of model for homogeneous hyperconcentrated sediment flow in laminar regime in open channel has been studied and the expression of scale for similarity has been derived.

本文研究了明渠均质高含沙水流在层流区的模型律，导出了模型相似比尺表达式。

According to the characteristics of large-scale steel enterprises with long process flow, the authors discuss the system structure of a particular and applied CIMS which has 7 application functions and 6 layers, and propose the electronic commerce interface and the information integration model.

结合大型国有长流程钢铁企业CIMS在设计与实施过程中的特点，论述了包括七大功能划分为6级的特有的CIMS体系结构，提出了电子商务接口的解决思路；

A model of this type has been designed, which scale is 1 ∶ 2.Experiments of flow visualization, gasdynamic performance and foreign object throwing have been done.

针对某型发展型飞机设计并制造了缩尺比例为1∶2的该型式进气道模型，进行了流态观察，气动性能试验和投掷外来物试验。

Study on the model of information transmission and controlling of the large-scale irrigated area based on information flow

基于信息流的大型灌区信息传递与控制模型研究

Taken benzene as model organics, the bench scale tests and flow tests on the treatment of drinking water by ACF combined with electrokinetics method was studied.

以苯酚代表水中的有机物，研究了利用活性炭纤维和电动力学作用协同处理饮用水的效果。

Large-scale model tests were performed to study the effectivity of many methods of aeration in cavitation-protection for the sidewalls, and the plan was given for spillway tunnel with large discharge and high velocity flow.

通过大比尺的模型试验，研究了多种掺气减蚀方法，提出了解决高流速、大流量泄洪洞侧墙掺气减蚀方案。

Based on the theory of flow instability and theoretical model of boundary layer, a new theoretical model of 3-D wave model for the large-scale vortices structures in the wake region was proposed to interpret the mechanics of large-scale vortices occurrence.

根据流动稳定性理论，在边界层外区大尺度涡理论模型的基础上提出了一种解释尾迹流中大尺度涡产生机理的三维理论模型。

Estimation of scale effect of air entrainment in model test of aerated flow

掺气水流掺气浓度缩尺影响的估计

First, based on the investment prediction model ( Richardson, 2006), the thesis estimates the optimal level of companies' investment, and get the scale of over-investment and free cash flow.

首先，本文借鉴Richardson（2006）的投资预测模型，估计出企业的最优投资水平，进而得到过度投资与自由现金流的规模。