A Study on the Design Analysis and Test of a Ballute Type Parachute of the Smart Submunition

Lee, Sang-Kil; Lee, Sang-Seung

Journal of the Korea Institute of Military Science and Technology 2008;11(2):23-31.

Sang-Kil Lee, Sang-Seung Lee

Korea Military Academy

지능형 자탄의 벌루트형 낙하산 설계 해석 및 시험에 관한 연구

이상길, 이상승

육군사관학교

Abstract

The configuration model of a ballute type RAID(Ram Air Inflated Decelerator) for reducing the high speed and high revolution of smart submuntion is designed and tested. Three dimensional incompressible turbulent flow computational fluid dynamic analysis for the assembly of ballute and submunition is performed and pressure distribution, velocity, and drag around the assembly is calculated. Aerodynamic characteristics of the ballute assembly such as air flow inside and outside of the ballute and pressure distribution is clearly shown and it's drag coefficient is computed. Trajectory analysis of the submunition is performed and is in good agreement with the descending trajectory data of experimental model tested.

Key Words: Smart Ammunition, Aerodynamic Decelerator, Ballute, RAID(Ram Air Inflated Decelerator), Trajector Simulation