抄録
Numerical simulations and related works are reviewed by focusing on gas-driven-type laser propulsion
which enables low-cost space launch system due to its propellant-less principle. Process of forming a
blast wave by laser absorption in the atmospheric environment was reproduced using thermochemical
non-equilibrium flow simulation with detailed chemistry. The trajectory of a laser-launched vehicle obtained
by a 6-degrees-of-freedom simulation agreed with a past fight experiment, and the simulation results
suggest that the beam riding performance should be improved for actual use. Therefore, a new attempt
to improve the beam riding performance by using a multi-parabola body is examined. Moreover, it
was found that the dominant chemical process at discharge front driven by millimeter-wave beam changes
depending on the beam intensity.
