In recent years, investigations show that the hazardous noise will be greatly reduced by replacing the large exhaust nozzle with a number of small nozzles, and quantitative relations were found.

在近几年的研究工作中，我们发现用多数小喷口代替排气的大喷口可使其所产生的噪声中对人干扰的部分大大减少，并求得定量关系。

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Turbulent reactive flow in a short annular combustor is simulated by changing the number and location of nozzle and swirler in combustor dome.

通过改变燃烧室头部喷嘴、旋流器的数目和位置，对短环形流燃烧室内有较强回流的湍流旋流流动进行了模拟。

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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。

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