粘性

The physical characteristics of various hyperbolic waves in Eular system are analysed. The shock physical characteristics and the conditions of forming the shocklet are discussed, detailedly. We are clear about the mechanism of shocklet excited by continuous waves.The physical mechanism of TS waves and the relation between shocklets and TS waves are studed in a systematic way.

从理论上分析了Eular系统中各种双曲波的物理性质，详细讨论了激波的物理特性和与产生激波的条件，明确了通过连续波动诱发激波物理机理，系统研究了TS波的在可压与不可压流动中的物理特性以及与激波的联系，分析了粘性对激波形成的影响。4。

The conclusion results are positive. The shock wave with viscosity and heat conduction is validated a hyperbolic tangent type of soliton wave.

证实了有粘性和导热的激波是一类满足Sine-Gordon方程的双曲正切型孤立波。

Applying the theory in classical partial differential equation and viscosity solutions, and Schauder fixed point theorem and Sobolev imbedding theorem, the existence and uniqueness of viscosity solution of the coupled PDE model are proved.

研究耦合PDE模型粘性解的存在性和唯一性问题。

In order to solve the problems of aging of dope and Weather fastness energy balance,we have researched and developed the impregnant dope of tetracopoly merization,which constitute mainly.

引言含氟聚合物的碳氟键离解能比碳氢键离解要大得多，而碳氟键的键长又比碳氢键短，所以氟树脂有良好的机械性能、优异的耐化学品性、优良的热稳定性、耐侯性以及高度不粘性和低的磨擦系数。

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。

There are different views about the genesis of nano-sized particle layers in rocks, and we incline to the view that shear friction plays a dominant role and that the nano-sized particle layer may be called a frictional-viscous thin layer.

对岩石中纳米粒子层的成因有着不同的观点，我们倾向于剪切摩擦的主导作用，纳米粒子层可称谓摩擦-粘性薄层带。

Specify the incompressibility and viscosity of the particles, as well as how much they are permitted to overlap.

指定粒子一个不可压缩性的和粘性，也可以指定他们有多少可以被重叠。

This method, based on the physical characteristics of clould, such as incompressibility, low density and inviscid, uses the fluid equations to calculate the properties of cloud. Then by accelerating this method through GPU, it achieves a good effect, which is continuous, dynamic and real cloud .

首先分析了云的物理模型，考虑到GPU的特点建立了云的模型；然后根据云的不可压缩、低密度、无粘性的特点，通过流体方程计算了云的物理属性，并将其求解过程在GPU中实现，从而得到了动态的，真实感强的，实时的统一，得到了较真实的模拟效果。

Due to the problems existing in simulation on physical model of fire, such as heavy calculation, high complexity and difficulty in real-time simulation, a new real-time simulation method was raised based on fluid model and GPU acceleration. This method, based on the physical characteristics of fire, such as incompressibility, low density and inviscid, used the fluid equations to calculate the properties of fire. Then by accelerating this method through GPU, the real-time simulation of fire was realized and a realistic effect was achieved.

针对目前基于物理模型模拟火焰的计算量大、复杂度高，很难进行实时模拟的问题，提出了一种基于流体模型和GPU加速的火焰实时模拟方法，该方法根据火焰的不可压缩、低密度、无粘性等特点，通过流体方程计算火焰的物理属性，并将其求解过程在GPU中并行加速，从而大幅度提高了算法的运算速度，实现了火焰的实时模拟，并取得了较真实的模拟效果。

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。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失