Propagation of two‐dimensional and quasi‐one‐dimensional Laser Supported Detonation (LSD) waves driven by a line‐focusing laser beam was investigated using the shadowgraph method. As a result, fractional laser absorption during the LSD regime for 2D and quasi‐1D cases was 68% and 81%, respectively, which was lower than that of three‐dimensional LSD wave driven by a point‐focusing beam (typically 90%.) However, the blast wave energy efficiency was found proportional to the fractional absorption. Besides, the LSD threshold intensity was apparently lowered in the quasi‐1D case due to the momentum confinement effect. Comparison with the quasi‐1D simulation considering the real gas effects suggests that non‐equilibrium effects and radiation loss should be playing an important role in the energy conversion process in the LSD regime.
Energy Conversion Process in Laser Supported Detonation Waves Induced by a Line‐Focusing Laser
BEAMED ENERGY PROPULSION: Fourth International Symposium on Beamed Energy Propulsion ; 2005 ; Nara (Japan)
AIP Conference Proceedings ; 830 , 1 ; 133-141
2006-05-02
9 pages
Conference paper
Electronic Resource
English
Energy Conversion Process in Laser Supported Detonation Waves Induced by a Line-Focusing Laser
British Library Conference Proceedings | 2006
|British Library Conference Proceedings | 2006
|Springer Verlag | 2024
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