摘要
假定理想不可压缩流体呈无旋定常流动、超空泡尾部Riabushinsky为闭合方式,基于水动力学势流理论及细长体理论,建立了描述水下细长锥型射弹超空泡流动的积分微分方程。该方法发展了求解该类方程的数值离散方法,提出了多种超空泡外形初值解,分析了它们对超空泡形态计算结果的影响,优化了计算过程,简化了初始迭代条件。计算得到的超空泡流动参数与相关文献的理论和实验结果吻合良好。
By means of the ideal incompressible fluid motion which is irrotational and steady and supercavitating closure with the Riabushinsky scheme,an integro-differential equation was established for the supercavitating flow past a slender cone type projectile traveling in water based on the potential flow theory of hydrodynamics and the slender body theory.An numerical discrete method for solving the integro-differential equation was developed,and various initial solutions of supercavity profile were proposed and the influence on results were analyzed.The process of computation was optimized and the initial cavity solution for the first iteration was simplified.The calculated results about the characteristic parameters of supercaviting flow agree with the relative theoretical and experimental ones.
出处
《海军工程大学学报》
CAS
北大核心
2011年第1期5-9,42,共6页
Journal of Naval University of Engineering
基金
国家自然科学基金资助项目(10772196)
海军工程大学自然科学基金资助项目(HGDJJ08003)
关键词
流体力学
细长体理论
超空泡
不可压缩流动
射弹
fluid mechanics
slender body theory
supercavity
incompressible flow
projectile
