AEROTHERMODYNAMIC ASPECTS OF HYPERVELOCITY PROJECTILES

摘要

Electromagnetic (EM) guns are being considered for a number of roles, both in the Army and Navy. They are capable of achieving launch velocities well in excess of conventional propellant driven guns. At hypervelocities of 2 km/s and greater, aerodynamic properties begin to change. In addition, heating of the projectile body and stabilizing structures can become extreme. The present paper examines EM gun launch of a notional long range projectile, giving consideration to the trajectory, aerodynamics, and thermal environment.