Numerical Simulation on Three-dimensional Dynamic Process of Sabot Discarding of APFSDS

doi:10.3969/j.issn.1000-1093.2014.01.002

Abstract

Abstract: The discarding process of armour piercing fin-stabilized discarding sabot (APFSDS) is crucial for its flight stability and lethality. In order to describe the aerodynamic interferences between the projectile and the sabots and the six degree-of-freedom (6DOF) flight trajectories of three sabots with respect to the projectile, the three-dimensional flow field of APFSDS under the action of aerodynamic force and gravity is simulated with the use of the dynamic mesh technique. Based on the governing equations of fluid dynamics and rigid body motion equations of 6 DOF and the variation of flow characteristics during discarding processes and the time history of aerodynamic coefficients of all sabots and projectile are obtained.

Key words: fluid mechanics, armour piercing fin stabilized discarding sabot, discarding sabot, dynamic mesh, 6 degree-of-freedom, shock wave

CLC Number:

TJ413₊.2

HUANG Zhen-gui, CHEN Zhi-hua, GUO Yu-jie. Numerical Simulation on Three-dimensional Dynamic Process of Sabot Discarding of APFSDS[J]. Acta Armamentarii, 2014, 35(1): 9-17.

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