摘要
该文根据冲压加速过程中复杂激波系的流场特点，构造了有限体积的ＴＶＤ差分格式，用于求解Ｎ－Ｓ方程，以美国华盛顿大学３８ｍｍ冲压加速器作为算例，给出了详细的流场谱图。计算结果表明，采用该文提出的ＴＶＤ差分格式，可以有效地捕获激波，为进一步研究带有化学反应的冲压加速机理奠定理论基础，也为冲压器设计提供理论指导。
According to the interacting complex shock flowfield of ram accelerator,a high resolution TVD finite volume scheme has been constructed for solution of the Navier-Stokes equations.A 38 mm ram accelerator used in University of Washington is taken as for example,and computed flowfields are given in detail.The computed results show that a high resolution TVD finite volume scheme is to successfully capture the shock in-bore of ram accelerator.This paper lay foundations for mading further study the reacting flowfields for a ram accelerator projectile launch system,and give the theoretical guide to design the ram accelerator.
出处
《弹道学报》
CSCD
1995年第4期24-30,共7页
Journal of Ballistics
