Mach number
英 [mɑːk ˈnʌmbə(r)]
美 [mɑːk ˈnʌmbər]
n. 马赫数
双语例句
- 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。 - The critical Mach number of the same spheroids in the different medium is deduced and the effect of compressibility under the same Mach number of main flow is analyzed.
分析了相同的回转椭球体在不同介质中的临界马赫数以及相同来流马赫数下不同介质中压缩性影响程度。 - The frequency of vortex shedding and the position of separation are affected by the incidence and Mach number.
分离点的位置随着攻角和马赫数的变化而变化。 - Design of an Adaptive Control Augmentation Stability System for Fighter Aircraft Whose Flight Altitude and Mach Number Vary
飞机在变高度和变马赫数下自适应控制增稳系统的设计 - 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。 - The dynamic derivatives conception is used as the index for the vehicle stability, but it is looked as the function of angle of attack and Mach number to induced nonlinear characteristics.
采用自由振荡法数值模拟了平头、钝头外形的超声速俯仰振荡时间历程，并应用奇异分解线性最小二乘法辨识稳定性导数，得到动导数随马赫数和攻角非线性变化的规律。 - Meanwhile, the oscillation amplitude is mainly determined by the mean Mach number.
平均马赫数对旋涡脱落频率的影响不大，对压力振幅的影响显著。 - 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。 - 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。 - In transonic flow, a simple empirical formulation is given to predict the wave drag of upswept aftbody, which extends the usable range of Mach number.
在跨音速范围，给出了一种简单的上翘后体波阻的估算方法，拓宽了马赫数的适用范围。 - In the developed model, two key parameters, the BVI miss-distance and trace Mach number, were brought in.
在该模型中，引入了桨涡垂直间距和轨迹马赫数两个关键影响参数的求解。 - Abstract: Air data system provides the aircraft with critical flight information: altitude, altitude rate ( vertical speed), airspeed and Mach number, which are used in flight control and navigation.
大气数据系统可为飞机提供高度、高度速率（升降速度）、空速和马赫数等飞机飞行状态的重要信息，并应用于飞控和导航系统中。 - The main flow is approximately dependent only on Mach number.
主流仍然近似地只同马赫数有关。 - Influence of Mach number on tornado corner flow dynamics.
数对龙卷角流动力学的影响。 - 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。 - However, the difference decrease to 2.6% when the inflow Mach number increases to Ma 8. An analysis for flow and heat transfer between two parallel plates microchannel with one wall heated in slip flow regime
而当来流马赫数为8.09时，侧板前掠的进气道流量系数仅高2.6%。滑移流区平行平板微通道内单侧加热流动与换热 - Experimental study on the vortex tubes with different Mach number nozzles
喷嘴马赫数对涡流管性能影响的实验 - Implicit algorithms for viscous flow simulation at arbitrary Mach number
计算全马赫数下粘性流动的隐式算法 - Considering the friction choke phenomenon of gas particle flow, and using Mach number checkout method, the critical duct length of gas particle flow in combined duct has been determined.
考虑管壁对气粉两相流的摩擦阻力作用和壅塞现象建立了等截面摩擦管中气粉流的数学模型，并用马赫数检验法确定了临界管长。 - A Spark Discharge Method for Measuring Flow Velocity and Moving Shock Mach Number in Low Density Flow Field
测量低密度气流速度和运动激波马赫数的火花放电法 - In ejector and ramjet modes, working over a wide Mach number range is very important for the RBCC inlet, so the2D 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。 - Effects of Mach Number on Surface Features of Interaction Between Swept Shock and Turbulent Boundary Layer
马赫数对后掠激波和湍流边界层干扰特性的影响 - The dynamic performance of a ram air system will vary with Mach number and altitude and this tends to follow the aerodynamic characteristics of the missle.
像导弹空气动力特性一样，冲压空气式系统的动态特性随马赫数和高度的变化而变化。 - This example demonstrates that a low trim exit velocity head does not result in a low noise level in the valve, unless the valve outlet mach number is low.
这个例子显示，低阀门内件节流出口速度头不会保证阀门处于低声压级，除非阀门出口马赫数很低。 - Moreover, the smaller entrance Mach number means the better effect of reducing mass of leakage flow;
进口马赫数越小，涡流器对泄漏流量的减小效果越好； - 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。 - Variation of the wave family distribution with free-stream Mach number M ∞ is analyzed;
分析了波系分布随来流M∞数的变化； - Effects of flap deflection angle, angle of attack, Mach number and unit Reynolds number are discussed.
讨论了翼偏角、攻角、马赫数和单位雷诺数对热流与压力特性的影响。 - Secondly, the effects of initial temperatures, initial pressure, incoming flow Mach number and incoming flow deflection angle on the detonation wave structure were investigated.
其次，考察了初始来流温度、初始压力、来流Mach数和来流偏折角对流场特性和爆轰波结构的影响。