In this paper, we perform a numerical analysis of the parameters of shock waves (SWs) generated during the expansion of cylindrical volumes of compressed methane. A single dimensionless approximation of the overpressure dependence on the distance is obtained using precise numerical solutions. The overpressure values ​​in the SW are estimated for both the near and far zones. Comparison with previously developed similar dependences shows a higher accuracy of the proposed approximation, which allows predicting the consequences of accidents during the rupture of pipelines.

中文翻译：

---

气瓶冲击波参数

在本文中，我们对压缩甲烷的圆柱体积膨胀过程中产生的冲击波（SW）参数进行了数值分析。使用精确的数值解可以得到过压对距离的无量纲近似值。SW中的超压值是针对近区和远区估算的。与先前开发的类似相关性进行比较，可以显示所提出近似值的准确性更高，从而可以预测管道破裂期间事故的后果。