粘性流

Based on the conventional SIMPLE algorithm, a set of new dependent variables of momentum equations is introduced to extend the application of the pressure correction method for compressibe viscous flows and to accelerate the convergence.

在传统SIMPLE算法的基础上，本文提出了一种新的动量方程流场控制变量的选取方法，进而使本文所提出的压力修正法更适用于可压粘性流动的数值求解，同时也加快了收敛速度。

But in this paper, it is proven that the upper bound has nothing to do with the viscosity of the fluid by using decomposing theorems of spaces, Gauss's formula and Sobolev Space methods.

文中利用空间分解定理、高斯公式及Sobolev空间方法证明了不可压缩粘性流体定常旋转流在Sobolev空间［H1］3中存在一个与流体粘度无关的上界。

Based on fluid numerical results, a new parameter and its calculating method which are both strictly derived from basic equations of hydromechanics and thermodynamics are used to evaluate the mixing effect of viscous fluid.

从流体力学及热力学的基本方程出发，经严格推导给出了一种新的基于流场数值计算结果的评价粘性流体混合均化效果的参量及其计算方法。

Based on viscous, stable and impressible Navier-Stokes equation and k-s turbulent model, the aerodynamic characteristics and the fluid field around the maglev vehicle are simulated by means of the finite element analysis software ANSYS.

本文以粘性定常不可压Navier-Stokes方程以及k-ε双方程湍流模型理论为基础，利用大型有限元分析软件ANSYS对磁悬浮列车的空气动力特性和外部流场进行数值分析研究。

The flow of incompressible viscous fluid is controlled by Navier-Stokes Equations.

不可压缩粘性流体的恒定流是由定常的Navier- Stokes方程所控制的。

In this paper,the problem for the thin-plate flow of incompressible non-Newtonian visc...

本文研究聚合物加工中提出的非牛顿粘性流体薄板流问题。

It is well known that there exist many applications in viscous incompressible flows.

粘性不可压流在实际应用中很有价值。

Three turbulent models used recently have been analyzed. On the basis of turbulent random theory, the k-εtwo equations turbulent model has been modified by nonisotropic hypothesis, to accommodate the nonisotropic property of flow field.

重新推导了雷诺应力表达式，将湍动粘性系数用一个二阶张量形式表示，以适应流场的各向异性性质，并对ε输运方程的生成项做了修正。

With k-ε turbulent model and wall function presented by Launder and Spalding, numerical results of viscous resistance coefficient, isoplethic maps of velocity and stress contributions are obtained.

采用 紊流模式及Launder和Spalding提出的壁函数进行数值模拟，得到了该双尾船船体粘性阻力及速度、切应力的等值线分布等结果。

With k- e turbulent model and wall function presented by Launder and Spalding, numerical results of viscous resistance coefficient, isoplethic maps of velocity and stress contributions are obtained.

采用k-ε紊流模式及Launder和Spalding提出的壁函数进行数值模拟，得到了该双尾船船体粘性阻力及速度、切应力的等值线分布等结果。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐