Trajectory Control of Small Rotating Projectiles by Laser Sparks
2016, American Institute of Aeronautics and Astronautics Inc, AIAA. All Rights Reserved. Experimental and theoretical analyses of the trajectory control of small rotating projectiles by laser discharges have been performed. The laser spark was generated by 1.06 m Nd-YAG laser (300 mJ, 5 ns pulse duration). It was shown that the spark generates a strong shock wave, a hot gas spot, and a slowly evolving air jet. The gas heating associated with the hot gas spot is the primary mechanism for the pressure redistribution along the projectile surface and the trajectory change.