离散流

Discrete Ricci flow is a theoretic tool to compute such a conformal flat metric.

通过对离散Ricci流方程的求解，我们可以为初始网格找到满足条件的黎曼度量。

In this paper, one of the particle discrete element method named particle flow code in 2-dimensionPFC~(2D is used. Based on the results of lab tests, sand behavior under monotonic and cyclic loading is simulated from the aspect of association of macro and micro scope.

本文利用颗粒离散元法中的二维颗粒流方法，以试验研究结果为基础，从宏细观结合的角度对单调与循环加荷条件下砂土的力学性质进行了细观模拟。

A control-oriented macroscopic dynamic traffic flow discrete model applicable to the nonlinear, uncertain, fuzzy system of urban traffic network was discussed.

针对城市道路交通流非线性、不确定性和模糊性特点，提出了面向控制应用的城市交通网络宏观动态离散模型。

In the study of flow oscillation and discrete frequency noise of impinging jet, it is found that there is a critical pressure ratio for a given nozzle and a nozzle-to-plate distance.

发现对于给定的喷嘴和冲击距离，存在一个压比临界点，当压比高于此临界点值时，流场振荡和离散频率噪声被显著抑制乃至消失。

In this way, it is easy to regularize discrete scheme and programming. Besides, the numerical solutions can be more steady and the convergent process faster.

为便于统一编程和利用有限边界元素法进行方程的离散，作者对粘性流场的控制方程组进行了标准化处理，通过在连续方程中引入内部阻尼项，使连续方程和动量方程及能量方程具有相同的标准化形式。

As to grain flow model, grain discrete elements are used to set up dynamic models.

而颗粒流模型大部分采用的是颗粒离散元建立动力模型。

These images of China full of diversity and mobility simultaneously reflect the diversity, mobility and open-endedness of the writers cultural identity, and so refute the belief in essentialist identity of Asian American literature criticism, and at the same time echo the views on multi-cultural identity and diasporic identity advocated by some Asian American scholars.

从这些富含差异性和流变性的中国形象中折射出来的华裔作家的身份认同也呈多元、流动、开放的形态，从一个侧面反驳了华裔美国文学批评中的本质主义身份观，同时也应和了华裔美国文学研究中的多元文化身份观和离散身份观。

Numerical method was used to calculate the flow field in three-phase fluidized bed, and to find the better arrangement of rectifying plate. The Discrete Phase Model was used to track the particles track and analyse the influence of structure parameters and operating parameters on dust-collection efficiency. The experimental results coincided with the calculation result.

利用数值计算的方法模拟计算三相流化床塔内流场分布，探求三相流化床的设计参数和运行参数对流场分布的影响，并找出优化整流板布置的方法；利用离散相模型模拟计算粉尘粒子运动轨迹，分析设计参数和运行参数对除尘效率的影响，并与实际工程测试结果比较，结果是两者基本吻合。

Based on the Saint-venant equations describing the channel flow movement, the nonlinear algebraic equations derived by the use of Preissmann weighted implicit four-point scheme are solved with the Netwon-Raphson method. A combined Gauss main-element elimination method with compress-storage technique is proposed. The relaxation iterative method for solving branch river networks is extended, which can turn the problem of any complex river networks into the problem of a series of single rivers. The coupling of hydraulic model with water quality model is built up. The combined model was applied to a large complicated river networks with numerical hydraulic structure which influenced by strong tide, storm and heave rain. Visualization of computational results is realized by means of MapInfo, which displays the computational results in fast, convenient and accurate way.

水力模型以描述河道洪水波运动的Saint-Venant方程组为基础，用Newton-Raphson方法直接求解按Preissmann加权四点格式进行离散所得的非线性代数方程组，提出了压缩存贮形式的Gauss列主元消去法并对数值解的收敛性进行了讨论；将支流流量的松弛迭代方法从树状河系推广到了环状河网，使任意复杂河网水力计算的问题都可化为一系列的单一河道的水力计算问题；建立了水力模型与水质模型的联接，初步应用于既有洪水、暴雨、强潮等综合影响，又存在多种水工建筑物及水力调度问题的大型复杂河网中的非恒定流水力、水质计算问题；利用MapInfo对计算结果的可视化进行了研究，有利于决策者快速、方便、准确地作出决策。

The principle of distinct element method in combination with flow model is discussed in the paper.

讨论了渗流模型与离散元模型耦合在边坡稳定性分析中应用的原理和方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。