Title: Numerical Study on Thrust Performance Evaluation of Laser Propulsion during Supersonic/Hypersonic Flight
Abstract: Recently, several laser propulsion vehicles have been launched successfully. However, previous studies of laser propulsion have been limited on very low subsonic flight condition, because present laser facilities are not sufficient enough to produce extremely tremendous laser power. But, for space launching or aircraft flight, high speed flight condition is eventually traversing flight regime to complete mission. So, thrust characteristics on high speed flight condition becomes an important issue. In this study, numerical simulation was performed to understand the supersonic laser propulsion vehicle. From the result of numerical simulation for various flight Mach number, it has been understood that momentum coupling coefficient of supersonic/hypersonic laser propulsion is inversely proportional to the flight Mach number, and that, a large energy input causes thermal choking and projectile unstarts at the relatively low supersonic flight Mach number.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 2
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