摘要
针对国内外有关膛口流场的研究现状,基于计算流体力学理论,研究了火炮后坐运动对膛口流场的影响.采用轴对称Euler方程组和有限体积法(FVM),建立了某火炮有、无后坐运动两种情况下的膛口流场数值计算模型;利用计算流体力学软件和动网格技术,分别对其进行了非稳态数值模拟;通过对火炮在有、无后坐时膛口流场的数值模拟结果进行对比,分析了火炮后坐对膛口流场的影响.研究表明:火炮后坐运动时膛口前方的压力降低,膛口后方的压力增大;火炮后坐对炮膛合力产生的影响较小.
In view of the research status at home and abroad on muzzle flow field, the effects of the artillery recoil movement on muzzle flow field are studied based on computational fluid mechanics theory. Two numerical calculation models with and without recoil movement were built by using axisymmetric Euler equations and finite volume method （FVM）. The unsteady state numerical simulation was carried out by using computational fluid dynamics software and dynamic grid technology. By comparing the numerical simulation results with and without recoil movement, the results show that the pressure ahead of muzzle is decreased and the pressure behind the muzzle is increased. Artillery recoil has little effect on the force of the gun chamber.
作者
雷红霞
王志军
LEI Hong-xia WANG Zhi-jun(School of Mechatronic Engineering, North University of China, Taiyuan 030051, China)
出处
《中北大学学报（自然科学版）》
CAS
北大核心
2017年第1期36-41,共6页
Journal of North University of China(Natural Science Edition)
关键词
膛口流场
动网格
非稳态流动
火炮
muzzle flow field
moving mesh
unsteady flow
artillery
