Laser-Supported Directed-Energy 'Air Spike' in Hypersonic Flow

Autor:	Henry Nagamatsu, Leik N. Myrabo, José B. Chanes, Paulo Toro, Marco Antonio Sala Minucci, A. L. Pereira, Antonio Carlos de Oliveira, A. G. Ramos
Rok vydání:	2005
Předmět:	Stagnation temperature Engineering Hypersonic speed business.industry Expansion tunnel Aerospace Engineering Mechanical engineering Mechanics Stagnation point Laser Piezoelectricity Pressure sensor law.invention Space and Planetary Science law TEA laser business
Zdroj:	Journal of Spacecraft and Rockets. 42:51-57
ISSN:	1533-6794 0022-4650
DOI:	10.2514/1.2676
Popis:	The experimental results on the laser-supported directed-energy "air spike" (DEAS) in hypersonic flow are presented. A CO 2 TEA laser has been used in conjunction with the IEAv 0.3-m Hypersonic Shock Tunnel to demonstratethe laser-supported DEAS concept. A single laser pulse generated during the tunnel useful test time was focused through a NaCI lens ahead of an aluminum hemisphere-cylinder model fitted with a piezoelectric pressure transducer at the stagnation point. In the more recent experiments, a double Apollo disk model fitted with seven piezoelectric pressure transducers substituted the simple hemisphere-cylinder model. The objective of the present research is to corroborate the past results as well as to obtain additional pressure distribution information.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b5ae4faae61d3c675ff2388e3a0622b2 https://doi.org/10.2514/1.2676 Zobrazit plný text záznamu