流体力学

"We're looking now at a time frame of something like 2065," said John Austin, a computer modeller at the Geophysical Fluid Dynamics Laboratory in Princeton, New Jersey.

约翰·奥斯汀是新泽西州普林斯顿的地球物理流体力学实验室的电脑模型师，他说："我们正在研究从现在到 2065 年等的时间段。"

Establish the steady-state and transient model using the three hydrodynamics equations (Continuity equation, Momentum equation and Energy equation). By comparing different state equation, it selects the BWRS state equation which is considered the most accurate state equation in current natural gas measurement. It calculates compression factor, density and other Thermal parameters based on BWRS state equation. In Numerical solution of the steady-state and transient model, compression factor, friction coefficient and all the other Thermal parameters are recalculated in each small time step to reduce the numerical calculation error.

在稳态模型的建立上，利用流体力学三大方程(连续性方程、运动方程和能量方程)，通过比较不同的状态方程选用了目前被认为最精确的用于天然气计量的BWRS状态方程，并以此方程为基础进行压缩因子、密度等热物性参数的计算；在稳态模型的求解上，选用容易计算，精度较高的标准型龙格—库塔(Runge-Kutta)法进行数值求解，并且在迭代过程的每一小步都重新计算燃气的压缩因子，摩阻系数等所有的计算参数，以减少数值计算的误差。

01 Is a first-semester freshman physics class in Newtonian Mechanics, Fluid Mechanics, and Kinetic Gas Theory.

介绍：8.01是大学新生第一学期的物理课，它包括牛顿力学、流体力学和气体动力论。

As a special case, when the index isα=0 or α=1, the equations is just the classical elastic mechanics or the Newtonian viscous mechanics, respectively.

作为特例，当粘弹性指标分别为α=0和α=1时，以上方程组即为经典的弹性力学和牛顿流体力学基本方程。

A new set of dimensionless nomogram characterized by two parameters and Reynolds number is used to improve the deficiency of the AG number.

实验上，我们模拟了一个五倍大的尿道模型，并配以不同阻塞程度，阻塞外型来做实验，并以计算流体力学验证之。

ABSTRACT Computational fluid dynamics is a combinative production of modern hydrodynamics, numerical mathematics and computer science, and is a new science with powerful vital force.

计算流体动力学是近代流体力学，数值数学和计算机科学结合的产物，是一门具有强大生命力的边缘科学。

Computational fluid dynamics is a combinative production of modem hydrodynamics, numerical mathematics and computer science, and is a new science - with powerful vital force.

计算流体动力学是近代流体力学，数值数学和计算机科学结合的产物，是一门具有强大生命力的边缘科学。随着各种CFD技术的迅速发展，它在许多行业内得到普遍的推广和应用。

Cyclones;Computational Fluid Dynamics;The Model Of Onflow;Numerical simulation

重介质旋流器；计算流体力学；湍流模型；数值模拟

The main parameter of the fluid mechanics is Reynolds count, the basic condition of sludge dispersing Reynolds count is in onflow.

管出口流体力学的主要参数是雷诺数，分散污泥的基本条件是管出口的雷诺数处于湍流状态，雷诺数大于5000后污泥流动状态更稳定。

Based on the calciner physical model and hydromechanical onflow model, spouted calciner and swirling-spouted calciner adopted by Huaxin Cement Plant were analysed, and two mathematical models were proposed...

在借鉴分解炉物理模型和流体力学的湍流模型的基础上，对华新水泥厂采用的喷腾式和旋喷式分解炉进行了分析，提出两种数学模型，为优化分解炉结构设计提供了理论依据。

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。