含能材料2025，Vol.33Issue(12)：1428-1438,11.DOI:10.11943/CJEM2025201
基于SPH的射孔弹炸高和射流倾斜角对侵彻效果的影响
Analysis of the Impact of Perforating Charge Burst Height and Jet Inclination Angle on Penetration Performance Based on SPH
摘要
Abstract
Considering the constraints of small boreholes in deep wells on burst height and the influence of penetrating the perfo-rating fluid,a typical deep-well charge-casing combination with an outer diameter of 139.70 mm and wall thickness of 9.17 mm casing,paired with a perforating gun with an outer diameter of 89.00 mm,was modeled using the mesh node method to estab-lish a three-dimensional SPH model of the perforating bullet.The effects of the perforating charge's burst height and jet inclina-tion angle on penetration performance were analyzed.The study shows that t he mesh-node conversion method for SPH particle modelling results in more uniform particle distribution and smoother boundary particle arrangement compared to the mesh cen-tered method.Under typical deep well oil casing and gun-bullet conditions,increasing the detonation height from 12 mm to 18mm reduced the maximum axial velocity by 7.72%,while further increasing it from 18 mm to 24 mm decreased the maxi-mum axial velocity by 5.27%.At an inclination angle of 60°,the metal jet impact velocity was 6564 m·s-1,whereas at 45°,it was 6283 m·s-1,showing a 4.28%reduction.The differences in maximum energy and residual energy of the metal jets between the two inclination angles were relatively small,with variations of 1.05%and 2.5%,respectively.关键词
射孔弹/能量和速度分析/SPH方法/炸高/倾斜角/侵彻效果Key words
perforating charge/energy and velocity analysis/SPH method/burst height/inclination angle/penetration perfor-mance分类
军事科技引用本文复制引用
李明飞,贾建鹏,问晓勇..基于SPH的射孔弹炸高和射流倾斜角对侵彻效果的影响[J].含能材料,2025,33(12):1428-1438,11.基金项目
陕西省重点研发项目(2024GX-YBXM-500) （2024GX-YBXM-500）
陕西省秦创原"首席科学家+工程师"项目(2024QCY-KXJ144)Shaanxi Provincial Key Research and Development Program(2024GX-YBXM-500) （2024QCY-KXJ144）
Shaanxi Qinchuangyuan"Chief Scientist+Engineer"Program(2024QCY-KXJ144) （2024QCY-KXJ144）
