• 제어로봇시스템학회:학술대회논문집
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• 1988.10a
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• pp.608-613
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• 1988

Subsonic aerodynamic force and moment characteristics have been determined for parametric groups of launchers. Geometric variables considered in the experimental study were body length, nose planform, fin planform (body-alone contained), number of stage and existence of extrnal booster, All data were obtained for angles of attack from 0 to 27 deg in 3-deg. increments.

• Journal of the Korea Institute of Military Science and Technology
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• v.18 no.6
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• pp.728-735
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• 2015

A gas gun system to replicate the flight motions of large caliber spin-stabilized ammunition has been investigated experimentally and numerically. The system is specially designed to study aerodynamic characteristics and dynamics of a flight body ejected from a cargo shell or a subsonic projectile itself at up to 2,000 rpm and 100 m/s. Raynolds-averaged Navier-Stokes equations with a overset mesh technique and 6-DOF dynamics were solved to decide the chamber pressure according to the muzzle velocity input by users. The predicted velocity values show less than 6 % of discrepancies compared to experimental data. The system has successfully been tested for the simulation of deployment of a parafoil for a 155 mm gun-launched projectile.