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引言为利用电子计算机对火箭燃气喷射流进行试验和数学模拟研究,本文通过新建立的火箭燃气喷射流模型,编制出适应719机(CJ—709机)和DJS—6机的通用程序,实现了手(人)工计算无法完成的多种功能,诸如,快捷计算燃气喷射流场成千上万个点的特性参数,自行描绘羽状流场等压线和无因次量剖面,运用均匀分布伪随机点的概率统计模拟方法迅速算得变化复杂的发射装置有效迎气形面,连续运算数十发火箭弹的后喷气流对发射装置的冲击力以及冲击中心随射弹飞行距离的变化,程序中附加或更换一些系数、参量或表达式
INTRODUCTION In order to test and simulate the rocket gas jet using a computer, a general program adapted to the 719 (CJ-709) and DJS-6 aircraft was developed through the newly established rocket gas jet model, The handworker calculates various functions that can not be performed, such as the quick calculation of the characteristic parameters of thousands of points in the gas jet flow field, the self-depiction of plume-like flow lines and dimensionless sections and the uniform distribution Probabilistic statistical simulation method of pseudo-random points can be quickly calculated complex change launcher effective face-lift, continuous operation of the dozens of rocket after jet flow on the launcher impact and impact center with the projectile flight distance changes, the program In addition or replacement of some coefficients, parameters or expressions