A class of compressible flow Mach number limit.
一类可压缩流的马赫数极限。
Based on similarity Principles and some typical operating mechanisms of combustion engines, the present paper suggests the modeling rules of steady performances of combustors at low flow Mach number.
本文是以燃烧过程的动力机理和燃烧系统的相似理论为基础，结合发动机的几种典型燃烧情况来研究低速燃烧系统稳态工况的模化法则。
The model inputs include the fuel flow, the nozzle area, the altitude and Mach number, and model outputs include the rotor speed, the temperature and the air pressure.
模型的输入量包括燃油流量、喷口面积、高度及马赫数，输出量则包括高、低压转子的转速及各截面的温度和压力。
The flow field parameter distribution can be affected more in upper stream, especially near the leading edge area while the Mach number distribution of the upstream blade surface is affected little.
对上游进口段，特别是靠近叶片前缘区域流场参数分布有较大影响，但对于上游叶片表面马赫数影响不大。
There exist a close coupling relation between the wind tunnel flow field parameters, total pressure and Mach number.
风洞流场参数—总压、马赫数之间存在严重的耦合关系。
Here the gas velocity corresponds to a Mach number of one, denoting that the flow velocity is equal to the local speed of sound of the particular gas.
在这里，气速对应到一个马赫数之一，指该流速等于当地音速的，特别是天然气。
In a steady internal flow the Mach number can only reach 1 at a minimum in the cross-sectional area.
在一个稳定的内部流动马赫数只能达到一在最低限度，在截面积。
When a harmonic wave propagates in one-dimensional unsteady flow, the wave amplitude at any x-position will be related with Mach number M and (?)
分析表明，当由简谐声源所发射的声波在一维非稳定流中传播时，对于某一确定位置，其声压幅度除随时间周期变化外，还受到M和（?）
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。
Comparison between S2 calculation, S1 calculation and FLUENT calculation illustrated that the mass flow and efficiency tally well, so does the distribution of mach number along the blade surface.
为校验所用S2 正问题计算和S1流面计算程序，对设计状态进行了S2 正问题计算、S1流面计算及FLUENT 计算，总参数如流量、效率等吻合较好，叶表马赫数分布趋势也很相似。
Comparison between S2 calculation, S1 calculation and FLUENT calculation illustrated that the mass flow and efficiency tally well, so does the distribution of mach number along the blade surface.
为校验所用S2 正问题计算和S1流面计算程序，对设计状态进行了S2 正问题计算、S1流面计算及FLUENT 计算，总参数如流量、效率等吻合较好，叶表马赫数分布趋势也很相似。
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