Numerical Analysis on Thermal Non-Equilibrium Process of Laser-Supported Detonation Wave in Axisymmetric Nozzle

Journal Article · Mon Apr 28 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2931914· OSTI ID:21137125

Shiraishi, Hiroyuki ^[1]

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1. Daido Institute of Technology, Dept. of Mechanical Engineering 10-3 Takiharu-cho, Minami-ku, Nagoya 457-8530 (Japan)

Numerical Analyses on Laser-Supported Plasma (LSP) have been performed for researching the mechanism of laser absorption occurring in the laser propulsion system. Above all, Laser-Supported Detonation (LSD), categorized as one type of LSP, is considered as one of the most important phenomena because it can generate high pressure and high temperature for performing highly effective propulsion. For simulating generation and propagation of LSD wave, I have performed thermal non-equilibrium analyses by Navier-stokes equations, using a CO{sub 2} gasdynamic laser into an inert gas, where the most important laser absorption mechanism for LSD propagation is Inverse Bremsstrahlung. As a numerical method, TVD scheme taken into account of real gas effects and thermal non-equilibrium effects by using a 2-temperature model, is applied. In this study, I analyze a LSD wave propagating through a conical nozzle, where an inner space of an actual laser propulsion system is simplified.

• OSTI ID: 21137125
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 997; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
AXIAL SYMMETRY
BREMSSTRAHLUNG
CARBON DIOXIDE LASERS
DETONATION WAVES
EQUILIBRIUM
EXPLOSIONS
NAVIER-STOKES EQUATIONS
NOZZLES
NUMERICAL ANALYSIS
PLASMA
PLASMA PRODUCTION
PROPULSION
PROPULSION SYSTEMS