马赫

In this article, the existence and uniqueness of the generalized solution of this boundary value problem are discussed, the existence and convergence of Galerkin's approximate solution is proved, and Linear dependence of the the error bound on M~2/(1-M~2) is also proved, where M is Ma...

本文证明了这类方程弱解的存在和Galerkin逼近解的存在和收敛，并且还给出了有限元解的误差估计，指出误差界线性地依赖于M~2/(1—M~2)。M为马赫数。也就是说，当流速接近音速时，有限元解的误差将无法控制。

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 effect of fluctuating pressure distribution on the surface made by Mach number and attack angle was researched.

同时利用该方法研究了马赫数、来流攻角等因素对再入飞行器表面脉动压力环境的影响。

The boundary layer edge conditions and the resistance and lift force coefficient in different Mach number and different angle of attack are worked out. Results of the method are in good agreement with the aerodynamics rules.

从而得到了边界层的外缘参数，计算出了弹丸在不同马赫数和不同攻角下的阻力系数和升力系数，分析结果符合空气动力学的基本规律。

In this paper, typical heating distributions on the gap wall were presented; effects of Mach number, attack angle and deflection on heat transfer to the gap wall were discussed;and comparisons between measured and predicted gap heating were made.

本文给出了缝内典型热流分布结果，讨论了马赫数、攻角和偏转角对缝内热流分布的影响并与现有计算方法和实验数据进行了比较。

Then, in the viscous fields, based on reference enthalpy theory and semi-empirical formulas, using the boundary layer edge conditions and classic methods, calculated the heating rates and the temperature on the heads of projectile in different Mach number and different angle of attack.

在粘性主导区内，在理论与半经验公式的基础上，利用参考焓方法，将无粘数值求解得到的边界层外缘参数代入经典的热流计算公式，从而得到不同马赫数、不同攻角时弹丸头部的表面热流和温度。

Complex wave structures of supersonic inlet at different inflow Mach number and angle of attack related to critical status were achieved by numerical simulation.

通过数值模拟得到了对应于不同来流马赫数和攻角情况下，临界工况时，超声速进气道内外粘性流场复杂的波系结构。

Wind tunnel investigation is conducted on six different canard configuration models over range of Mach from 0.8 to 2.5.The experiment data analyzes the regulation of rolling characteristics with Mach number and angle of attack,and the effect of rolling characteristics for different configurations is discussed.The rolling damping characteristics are also studied.

通过风洞实验得到了跨、超音速下六种组合模型的气动力数据，由实验结果分析了远程弹滚转特性随马赫数和攻角的变化规律，以及不同鸭式气动布局对滚转特性的影响，此外还分析了远程弹的滚转阻尼特性。

In this paper, the direct simulation Monte Carlo method is employed to simulate flows of modeled air vehicles having simple geometric shape such as delta wing at a Knudsen number between 0.001 and 0.1 for various Mach number and angle of attack conditions. With the calculated aerodynamic forces and heating, we obtained the general behavior of the rarefied gas effects on the vehicles' aerodynamics.

本文采用直接模拟 Monte Carlo 方法，模拟了简单外型如三角翼形的模型飞行器在努森数为 0.001到 0.1的范围内以不同来流马赫数和不同飞行攻角飞行时的流场，计算了飞行器所受到的气动力和气动热，获得了稀薄气体效应对飞行器气动性能影响的一般规律。

Current adjustable blade application in military aero-engine was discussed and the further development trend was predicted. High load, high mach number, broad flow angle range, and low flow loss level will be pursued.

根据航空军用发动机/压气机的发展趋势预测，可调叶片技术将在高负荷、高流动马赫数、宽调节范围、低流动损失4项指标上进一步提高。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。