VisualBasic6.0编写的底排弹内弹道程序注释丰富；底排弹内弹道数值流场仿真计算，程序编译通过可直接运行，并附带结果和图像供参考。像是一个民爆企业的内部火药计算程序，具体的换算关系不是太懂，是别人发过来让分享的VB源码，可用VB6顺利编译。

　　Module1模块：用于定义全局变量，函数fun()和xztel()，fun函数：用于实现四阶龙格库塔法解微分方程右端子式，xztel函数：用于计算火药特征尺寸-Ballistic rich program notes written in the bottom row VisualBasic6.0 bomb　the bottom row ballistic missile flow field numerical simulation, the program can be run directly by the compiler, and with the results and images for reference. Like a civil explosive gunpowder calculate the company s internal procedures, the specific conversion relationship is not too much to understand, let someone else sent me to share the VB source code, can be used successfully compiled VB6.

Module1 module: used to define global variables, function fun () and xztel (), fun functions: to achieve fourth-order Runge-Kutta method for solving differential equations and right terminal type, xztel function: used to calculate the characteristic size of gunpowder