查询词典 mach number

The improved e-N method can also yield results well agree with those obtained by DNS.4 The transition prediction for boundary layers on cones with different key parameters such as angle of attack, cone half angle and the Mach number of the coming flow, have been made, to show the reliability of the modified e-N method.5 For the calculation of base flow, boundary layer equations can be used in the case of small angle of attack.

但是它要依赖于对初始扰动的正确预估，这显然又取决于更多飞行数据的积累和分析。e-N方法的转捩预测结果与直接数值模拟得到的结果也吻合较好。4通过对不同来流攻角、不同半锥角和不同马赫数的三维圆锥边界层的转捩位置进行预测，证实了改进的e-N方法对于三维边界层转捩预测是可靠的。5对于基本流的计算，边界层方程可以用于小攻角的情况，其计算量远远小于直接数值模拟，但背风面的剖面不可靠。

On the basis of these results, the relations of total-pressure recovery coefficient or flow coefficient and flight mach number, angle of attack and the second movable wedge angle of the inlet have been founded by hypersurface fitting, then the mathematical model of the inlet is established.

根据流场计算结果并利用超曲面拟合方法建立了进气道总压恢复系数、流量系数与飞行马赫数、进气道攻角及二级可调斜板角度之间的关系，由此得到了二元混压式超声速进气道数学模型。

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。

Represents the typical cruise speed for a given jet airplane; usually expressed as a Mach number.

代表喷气式飞机常见的巡航速度，通常以马赫数方式表示。

One of the conclusions is that the critical position, on which the Mach number is 1, is not corresponding to the minimum section of Laval nozzle absolutely.

并且分析了影响系数不同取值范围时的各种情形，得到了气流马赫数达到1的位置不一定出现在最小截面处的结论。

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。

But still more work is needed on advanced adjustable cascade with higher turning angle and higher mach number.

这一性能水平同下一代发动机/压气机的技术性能指标要求相比仍存在一定差距。

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。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。