马赫

热空气可使之在超过临界马赫数之前达到更快的速度。

The hot air permitted higher speeds before the critical Mach number was exceeded

目标是以大约2马赫的速度飞行，也就是音速的两倍。

The aim is to fly at about Mach 2 , twice the speed of sound .

一种神经形态马赫数PID自适应控制器研究

Research of Self-Adaptive PID Mach Controller Based on Neural Network

测量喷气Z箍缩负载的气流马赫数

Mach number measurement of the gas flow from the supersonic nozzle in gas-puff Z-pinch

最后应用Matlab仿真验证，仿真结果表明，在一般的超声速状态下（马赫数小于4.5），该算法是收敛的。

Through the Matlab simulating experiments , the research result indicates that the arithmetic is convergent when the mach number is less than 4.5 .

然后利用DES方法研究了在不同马赫数来流情况下空腔的流场特性以及不同长深比空腔的流场特性。

Then the features of cavity flow in different Mach numbers and different length-to-depth ratio configurations are studied .

低耗散TVD格式及叶轮机内低马赫数流动模拟

Low Diffusion TVD Schemes and Simulation of Low Mach Number Flow in Turbomachinery

相同条件下，多变指数n增大，表明微喷管散热增加，将引起微喷管出口速度和当地声速减小，马赫数则随多变指数增大而增大。

At the same condition , polytropic exponent increases , meaning heat loss from the nozzle increases , will lead to outlet velocity and local acoustic velocity decreasing , but Mach number increasing .

关于HL-1M马赫探针及其诊断数据处理

On the HL 1M Mach probe and its diagnostic data processing

在这些理论基础之上，马赫首次提出了HPS理论，并由杜威进一步巩固和发展。

Based on In these theories , Mach brought up HPS theory for the first time .

入流和出流都是重连所必需的。测量喷气Z箍缩负载的气流马赫数

Both of the inflow and the outflow were necessary for the reconnection . Mach number measurement of the gas flow from the supersonic nozzle in gas-puff Z-pinch

以对流马赫数为压缩性参数，以Reynolds数为粘性参数分析了二者对计算流场稳定性的影响。

The effects of key parameters such as convective Mach number and Reynolds number on the stability characteristics of compressible mixing layers are analyzed .

本文描述了列阵喷管喉道高度为0.8毫米，马赫数为4.3的CO2气动激光器的实验装置和测量结果。

An experimental device of CO2 gasdynamic laser having an array of nozzles with a throat height of 0.8mm and a Mach number of 4.3 is described and its test results presented .

为了有效地模拟烟气输运过程，文中采用低马赫数近似下的三维可压缩Navierstokes方程进行求解，并采用有限差分法数值计算了滤波后的控制方程。

The filtered three dimensional compressible Navier Stokes equations under low Mach number approximation are numerically solved by finite difference method .

在雷诺数和磁雷诺数确定时，Alfvèn马赫数值（MA）对耦合特性起决定性作用。

It is found that the Alfv è n Mach number , MA plays an essential role in determining the properties of the coupled instability .

与传统的半导体光放大器（SOA）构成的马赫曾德尔干涉仪型异或门进行了比较，从器件结构上对两种异或门运算结果的差异给出了解释。

The performance of the XOR result has been analyzed and compared with the semiconductor optical amplifier ( SOA ) - MZI . The result differences of the two XOR gates are explained from the structural property .

数值计算表明，裂纹尖端场主要受材料的蠕变指数n和马赫数M的控制，这为解决工程实践中所遇到的相应的问题和建立材料的破坏准则提供理论的参考。

The numerical results show that the near-tip field is mainly governed by the creep exponent n and Mach number M. The study will provide theoretical references for the corresponding problems encountered in engineering practices and the founding of fracture rule of material .

利用空对地武器的弹道表，用遗传算法（GeneticAlgorithm，GA）辨识武器的阻力特性，即阻力系数与武器飞行马赫数之间的参数化函数关系。

Given tabulate ballistics of an air to ground weapon , the genetic algorithm ( GA ) is applied to identity the weapon 's characteristics , namely , a parameterized drag efficient as a function of the mach number of the weapon travelling in atmosphere .

c.攻角、喷流压比、喷流马赫数、来流边界层状态等内、外流参数变化对横向喷流干扰效应的影响分析。

Finally , the qualitative and quantitative effect of parameters such as attack angle , pressure ratio of jet , Mach number of jet and state of boundary layer on lateral jet interaction are analyzed in detail .

用Whitham方法计算马赫杆上的爆轰参数。

The detonation parameters on Mach rod were computed by Whitham method .

此外，还得知进气马赫数Z不是转速的单值函数；在定转速而负荷不同时，它不是常数。

In addition , it is found that the Mach number Z in the intake pipe is no longer a monotropic function of engine speed , and is also not a constant at engine constant speed and variable load .

采用FLUENT流动计算软件对某空射型导弹发动机的喷管及羽流流场进行了一体化的数值仿真研究，分析了导弹飞行高度和马赫数对喷管羽流流动的影响。

The numerical simulation of the nozzle and plume flow field of a rocket motor launched from air was performed using FLUENT software . The influence of flying altitude and Ma number on the plume flow was analyzed .

测得马赫数M为0.086，电子温度Te为5eV，等离子体漂移速度约为297m／s。

The results are : Mach number is 0.086 , electron temperature is 5 eV , plasma flow velocity is 297 m / s.

她的双亲，约瑟夫马赫（JosephMach）和玛瑞娜沃斯莎凡特（MarinavosSavant）都是移民，分别是德国人和意大利人，在小镇的蓝领住宅区经营一家酒吧和烤肉店。

Her parents , Joseph Mach and Marina vos Savant , were immigrants , German and Italian respectively , and ran a bar and grill in a blue-collar part of town .

计算的马赫数为0.7～2.5。用有限体积法和LU-SGS算法求解N-S方程。

The computations are made at Mach numbers of 0.7 and 2.0 . Full N-S equations are discretized into finite volume form and solved by an algorithm in LU-SGS .

通过与非定常Euler方程的比较，证明该气动力模型具有较高的数值精度，放宽了原始活塞理论对翼型厚度、迎角、马赫数的限制。

The results presented by this model agree well with those of solving unsteady Euler equations . This model greatly reduces the limitations of the classical piston theory on flight Mach number , airfoil thickness , and angle of attack .

用水和冰作为保护介质可使UFD得率超过10%，比利用马赫效应装药更适用于实际生产。

The yield of UFD has exceeded 10 % using water or ice as preserving media , which is more applicable than Mach effect charge .

A-12复仇者战斗机，一种速度能达到3马赫的侦查飞机也研发于该区。

The A-12 Oxcart , a Mach 3 spy plane , was also reportedly developed at Area 51 .

本文在讨论了各种测量气流速度的方法，特别是Miller的放电法基础上，提出了一种测量低密度流场气流速度和运动激波马赫数的改进方法。

An improved method for measuring flow velocity and moving shock Mach number in low density flow field was presented on the basis of discussing various methods of measuring flow velosity , particularly , Miller 's [ 1 ] discharge method .

使用这种方法计算了F-5机翼在来流马赫数为0.9和0.925时的定常气动力和操纵面振荡的非定常气动力。

As a computational example , the steady and unsteady aerodynamic force of F-5 wing with control surface oscillations is considered .