With increasing convective mach number the skewness and flatness factors increase a little and the peak positions move outwards.
随着对流马赫数的增加，脉动的偏斜性和间歇性略有增加，并且其峰值对应的位置向混合层外侧移动。
It shows the indicated airspeed and the Mach number.
它显示了飞行速度和马赫数。
The hot air permitted higher speeds before the critical Mach number was exceeded.
热空气可使之在超过临界马赫数之前达到更快的速度。
A power correlation between expansion ratio and Mach number at the nozzle outlet was found.
并给出了膨胀比与喷嘴出口马赫数之间的幂指数关系。
The Mach number at cascade inlet increasing range was larger with the slot width increased.
缝隙宽度的增大使叶栅进口马赫数升高的幅度也越大。
The initiation point is not fixed on the focusing point but varies with the incident shock Mach number.
爆轰波爆点位置在对称轴上并不是固定的点，而是随着初始激波马赫数的变化而发生移动；
The aviation bomb is flying in the high density atmosphere layer. Its fight Mach number is generally 0.9.
航弹主要是在稠密的大气层中飞行，巡航马赫数一般在0.9附近。
This method is used to design a series of nozzles. Their Mach number profiles are satisfied for the users.
利用该法设计的一系列喷管，其M数分布满足用户需要。
Experimental results of heat transfer to rough walls are given here for sphere cone models at Mach number 5.
本文介绍了来流马赫数5的条件下，典型球锥模型的粗糙壁热交换实验结果。
The shock total pressure was estimated with the normal component of the Mach number using normal shock theory.
激波总压损失用正激波关系式通过马赫数法向分量估计。
The critical Mach number is influenced by the initial pressure and temperature, but the temperature is the main factor.
可燃气体初始温度和压力对起爆临界马赫数都有影响，但是初始温度的影响大得多。
Numerical results show that contribution of high order terms are very important at lower Mach number or high angles of attack.
数值结果表明高阶项的贡献在较低马赫数或大迎角情况下是很重要的。
The shocklet was observed based on NPLS techniques in supersonic turbulent mix layer wind tunnel with convective Mach number 1.24.
在对流马赫数为1.24的超声速湍流混合层风洞中，以NPLS实验技术为基础观察到了小激波结构。
The properties of ion-acoustic soliton such as its excitation, spatial evolution aad Mach number are studied on a stable plasma device.
本文在稳态等离子体装置中，对离子声孤立子的激发、空间传播和马赫数等进行了研究。
The average effective pitch damping increases with increasing Angle of oscillation amplitude and decreases with increasing Mach number.
角振幅增大会使返回舱的平均俯仰阻尼增加，马赫数增大使俯仰阻尼降低。
In other words, the Mach number is a measure of the directed motion of the gas compared with the random thermal motion of the molecules.
用另一句话说：马赫数是气体的有序运动和分子无规则热运动的程度对比的度量。
Moreover, the law governing the influence of the outlet Mach number on the unsteady flow under various modes is found to be not always identical.
且不同模态下出口马赫数对非定常流动的影响规律表现不尽相同。
The start Mach number reduces from 3.6 to 3.3 when the flooding position is changed from sides to bottom, further to 3.25 with one modular inlet.
研究表明，进气道溢流口位置是影响内乘波进气道起动能力的重要因素：在溢流口位置由两侧改至最下端后，起动马赫数由3.6下降为3.3；
It is necessary to simulate the high enthalpy, high pressure, Mach number and the same concentration of oxygen species as air in hypersonic flight.
地面实验设备必须要模拟高超音速飞行状态下气流的焓、压力、M数和空气中氧气的组分。
Results show that under small Mach number the main source of discrete noise is the fluctuating force, which gives a guide for cutting discrete noise down.
研究表明，低马赫数情况下叶轮离散噪声主要是由脉动力造成，为降低低马赫数下的叶轮离散噪声提供了参考。
As example, the operating regime, wall profile and performance parameters of supersonic combustors with entry Mach number 2.2 are computed in some detail.
并以燃烧室的进口马赫数是2.2为例，对燃烧室的工况、壁型及参数变化进行了详细的分析研究。
Abstract : Acoustic radiation from a supersonic underexpanded jet with a designed exit Mach number 1.95 is investigated using large eddy simulation (LES).
摘要 ：针对马赫数为1.95的欠膨胀超声速喷流声辐射特性，采用高精度计算格式的大涡模拟（LES）方法进行数值研究。
In ejector and ramjet modes, working over a wide Mach number range is very important for the RBCC inlet, so the 2d RBCC inlet should be variable-geometry.
对工作于引射和亚燃模态的RBCC发动机进气道来说，宽马赫数工作的要求显得尤为突出，使得二元进气道应采用变几何结构。
The categorization is based on 4 parameters, namely, flight height, flight Mach number, engine rotational speed and overload on the engine center of gravity.
选取了飞行高度、飞行马赫数、发动机转速以及发动机重心法向过载等4个参数作为分类的原始依据参数。
It can be concluded that the accelerator mode MHD-controlled inlet can improve the inlet performance when the flight Mach number is lower than the design value.
研究结果表明，当飞行马赫数小于设计马赫数时加速器模式的磁控进气道可以提高进气道的性能。
Aimed at the jet noise which is induced by the expand structure and tail tube in the resistant muffler, a finite element model at low Mach number was developed.
针对抗性消声器中扩张结构和尾管引起的射流噪声问题，建立了低马赫数射流噪声有限元分析模型。
The computing AGARD445.6 wing flutter results validate the physical law of a typical transonic flutter "dip" with the bottom near the domain which Mach number is 1.
通过跨声速标模算例AGARD445.6机翼的颤振计算，计算的颤振临界速度与实验值有5%左右的误差，验证本方法的正确性。
For transonic free stream, sudden performance degradation occurs. For the further supersonic range, performance losses increase slightly with increasing Mach number.
在继续的超声速范围内，性能损失随外流马赫数增加只有小幅增长。
For transonic free stream, sudden performance degradation occurs. For the further supersonic range, performance losses increase slightly with increasing Mach number.
在继续的超声速范围内，性能损失随外流马赫数增加只有小幅增长。
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