激波

The data from two same satellites (CLUSTER C1 and C3) were used to make a statistical study of the solar wind deceleration and deflection in the Earth′s foreshock region for the first time.

本文首次利用完全相同两颗卫星（CLUSTER C1和C3）的数据对地球激波前兆区太阳风的减速和偏转特性进行了统计研究。

The largest values of deceleration and deflection are, respectively, estimated as 10 km/s and 3°. These decelerations and deflections not only lead to a variation of the magnetopause′s position and shape, but also supplies a possible generation mechanism of the diffuse ions in the foreshock region.

太阳风减速和偏转，以及随之变化的太阳风动压，可能会引起地球磁层顶位置和形状发生改变，同时也为激波前兆区弥散离子的起源及加热提供了一种可能的机制。

It also possessed a combination flash hider/sound moderator to reduce problems with muzzle flash and loud report.

它还具有一个降低枪口激波的消声／消焰器组合，可减少枪口火焰及噪声带来的问题。

In conclusion, by consideration of viscosity effect of material at propagating crack-tip, it is established in the paper the unified continuous singular crack-tip field in linear-hardening material under the condition of incompressibility. The plastic shock is eliminated that exists in non-viscosity solutions. What's more, the dynamic and quasi-static solutions are united together when the Mach number approaches zero.

总之，通过考虑扩展裂纹尖端材料的粘性效应，本文建立了幂硬化材料在不可压缩条件下扩展裂纹尖端的统一的连续奇异性场，消除了无粘性解中存在的塑性激波，在马赫数趋于零时动态解和准静态解得到了统一。

Calculate what forecasted the pressure coefficient of wing section surface as a result to distributing, the circumstance such as isopleth of the position of average rate section plane, shock wave, Mach number.

计算结果猜测了翼型表面的压力系数的分布、平均速度剖面、激波的位置、马赫数等值线等情况。

The discrete velocity ordinate method in the kinetic theory of gases is developed and applied to discretize the correspo

借助非定常时间分裂法和无波动无自由参数的NND耗散格式，建立直接求解微观分子速度分布函数的有限差分数值格式；研究并发展可用于离散速度坐标点选取和离散速度空间宏观取矩的高斯─埃尔米特无穷积分方法、等均间隔的牛顿─柯斯复合积分法、以勒让德多项式的根为积分结点的高斯─勒让德数值积分法，并应用于不同马赫数绕流模拟；通过对不同流域一维激波管问题、二维圆柱绕流问题和三维球体绕流的计算研究，并将计算结果与其他途径得到的研究结果诸如DSMC模拟值、N-S解及有关实验数据进行比较分析，创建了一套能有效模拟稀薄流到连续流不同流域气体流动问题简化的统一数值算法研究框架

In Chapter Ⅳ, the reliability of the scheme presented in this paper is proved by numerical experiments for solutions of shock tube flow problem and Laval nozzle flow problem. The treatment of boundary conditions is also described.

第四章通过对一维激波管、Laval管的数值计算验证了本文所采用的格式的可靠性，同时给出了边界条件的处理方法，并讨论了对应不同精度参数的TVD格式对计算结果的影响。

As the Mach number increases, the angle of the shock wave decreases.

随着马赫数的提高，激波的夹角变小。

The simulation of results indicated that with Mach number increased and the total pressure recovery coefficient decreased.

模拟结果表明：随着飞行马赫数的增加，由前缘点产生的激波逐渐靠近弹体，进气道内部总压恢复系数降低，在进气道出口处压力比较高，出口流场基本均匀。

Magnetopause is the boundary layer formed by the interaction of solar wind with magnetosphere, and current flows upon it.

磁层顶是由经过舷激波的太阳风和地磁层相互作用而形成的边界层，其上有电流流动。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。