1998 年 46 巻 538 号 p. 607-613
For laser propulsion system, it is very important to research the most effective way to utilize the optical energy. We have simulated the propagation condition of Laser-Supported Detonation Wave (LSD) because it can cause enough high pressure and high temperature to be used by laser propulsion. In this temperature level, the main absorption mechanism is Inverse Bremsstrahlung: The laser energy is transformed into the kinetic energy of free electrons by photon absorption during electron-ion/neutral collision, which is re-distributed among heavy particles through collisions. In this paper, we numerically simulate a room-temperature Argon gas which absorbs CO2 gasdynamic laser, using a 2-temperature model. As a numerical method, we have used Harten-Yee non-MUSCL modified-flux-type TVD scheme in which real gas effects are considered.