The design and computation of the hypersonic nozzle have scientific and practical value to solve these problems.
而高超声速风洞喷管的设计和计算则对解决这一类问题具有重要的科学意义和实用价值。
The condition of the existence of solution of functional extreme value problem applied to maximum thrust nozzle is also presented.
同时，还导出了最大推力喷管这个泛函极值问题解存在的条件。
The results show that with the reduction of nozzle diameter, the speed value of the core section is getting bigger, the scattering Angle of jet is getting lower and the focus of jet is getting better.
研究结果表明：随着喷嘴直径的减小，射流核心段速度值越来越大，射流的散射角越来越小，射流的集束性越来越好。
Energy law of similitude for laser propulsion refers to the law that there is an optimum nozzle configuration for the largest value of impulse coupling coefficient at certain incident laser energy.
激光推进的能量相似律，指确定的激光能量有与之相对应的最佳喷管尺寸，使得冲量耦合系数最大且不变的规律。
Energy law of similitude for laser propulsion refers to the law that there is an optimum nozzle configuration for the largest value of impulse coupling coefficient at certain incident laser energy.
激光推进的能量相似律，指确定的激光能量有与之相对应的最佳喷管尺寸，使得冲量耦合系数最大且不变的规律。
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