Numerical Simulation of Laser‐Driven In‐Tube Accelerator Operation

To achieve a higher thrust performance in the laser‐driven in‐tube accelerator operation, numerical analysises have been carried out. The computational code covers from the generation of the blast wave to its interactions with the projectile and the acceleration wall. The thrust history and the momentum coupling coefficient evaluated from the numerical simulation depend on the fill pressure and the projectile shape. The confinement effect can be clearly found using the projectile attached with a shroud.