Two-dimensional Numerical Simulation on Two-phase Flow Interior Ballistic Performance of a Guided Projectile

doi:10.3969/j.issn.1000-1093.2015.01.009

Abstract

Abstract: To simplify the complexity of moving boundary treatment in the two-phase flow numerical simulation and improve the computational accuracy of moving boundary treatment, a two-dimensional two-phase flow model based on ALE method is established. The governing equations are discretized with the TVD-type MUSCL scheme to obtain a second order accuracy in finite volume form. A two-step and fourth-order Runge-Kutta method is used to solve the source terms．The dynamic mesh update method and numerical method are verified by a standard test with the exact solution. The numerical application on a large caliber guided projectile shows the complete development and the two-phase flow characteristics of the interior ballistic process. The calculated results are in good agreement with the experimental results. The effects of different ignition conditions on interior ballistic performance are investigated. The study lays a theoretical foundation for deep optimization of the interior ballistic performance and firing safety.

Key words: ordnance science and technology, interior ballistics, two-phase flow, numerical simulation, guided projectile

CLC Number:

TJ012.1

CHENG Cheng， ZHANG Xiao-bing. Two-dimensional Numerical Simulation on Two-phase Flow Interior Ballistic Performance of a Guided Projectile[J]. Acta Armamentarii, 2015, 36(1): 58-63.

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