流体力学

It's found that, this theory can predict both"miscibility gap"and anisotropical phase separation of polymer blend, while the two different previous theories, that is the pure thermodynamical one and hydrodynamic one, could only predicts one but not both of them.

由于综合考虑了剪切的热力学以及流体力学影响，原来只能由纯热力学理论和&二流体&模型分别预测的复杂表观相图（例如Miscibility Gap）以及各向异性相行为都可以通过该模型加以预测和解释。

Batoid; undulation mode; oscillation mode; computational fluid mechanics

鳐； 波动模式；拍动模式；计算流体力学

A new strategy which combines the MPFD with bioreaction kinetics was presented for the design of such reactors.

基于这些认识，提出一种多相物理化学流体力学模拟与生物反应动力学相结合的反应器研究与设计新思路并给出实施步骤与要点。

Based on the pressure drop, thehydrodynamics and calorifics theory, the paper study the temperature drop law of the two-phaseflow.

在压降研究的基础上，结合流体力学和传热学理论，得到了两相流的温降公式，对两相流动的温降规律进行了研究。

Through the analysis of the flowing character of metal injection molding, a set ofessential equations describing the flowing process of metal ring injection molding areestablished on the bases of the general principles of hydrodynamics and calorifics.

通过对金属粉末注射成形流动过程规律的分析，从流体力学和传热学的基本原理出发，建立了一组描述圆筒形金属粉末注射成形流动过程的基本微分方程，经过假设与简化，得到一组简化的控制方程，采用有限差分法求解了这组微分方程，得到温度场。

A simple k-εturbulent model based on the analysis of the hydrodynamic behaviours of gas-solid cocurrent upward flow and downward flow have been developed.

基于对气固并流上行和并流下行流体力学行为的分析，本文建立了一个简单的k—ε湍流模型。

To simulate real time waves will be contributable to solve this problem.

这些波浪理论都是从流体力学基础出发的经典波浪理论。

In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象，在分析机组结构和特性的基础上，从机组的工作机理出发，以质量、能量、动量守恒定律为依据，将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上，建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型，该模型适合于大扰动全工况变化的数值仿真计算，充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性，并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线，从理论上分析了仿真结果的合理性。

According the experiential formulas of headbox to design the stepped diffuser headbox's geometry parameters. Supposing Paper suspension flow as potential flow and basing on hydrokinetic and computational fluid dynamics theories, we can solve the elliptoid partial differential equations which are followed by the flow functions and the potential functions by finite element method and simulate the flow's speed distribution with pde toolbox of matlab software. The simulate results and the flow analysis have good precision.

按照流浆箱的经验设计公式，设计阶梯扩散式流浆箱的各组件几何参数，以流体动力学、计算流体力学等理论为基础，假定浆流的流动为势流，采用有限元法求解浆流流动时其流函数和速度势函数所符合的椭圆型偏微分方程，应用matlab软件的偏微分方程工具包pde toolbox，模拟出所设计的流浆箱各组件内的浆流的流场流速分布，模拟结果与数值计算流动分析结果吻合。

Guangzhou subway No.3 lines some station was taken as research object , the infiltration and exfiltration pattern of airflow via opened Platform Screen Doors was simulated with CFD , besides, the airflow pattern in the front and the back of the train was analyzed respectively.

采用计算流体力学方法，以广州地铁3号线某车站为研究对象，对列车停靠站台，屏蔽门开启时，气流通过屏蔽门在车站站台和隧道间的渗漏模式进行数值模拟，并对列车前后端屏蔽门漏出风和渗入风模式进行了分析。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。