Velocity field imaging in supersonic reacting flows near atmospheric pressure

Autor:	William J. Kessler, Hartmut H. Legner, T. E. Parker, Steven J. Davis, P. Mulhall, K. McManus, Mark G. Allen, D. Sonnenfroh
Rok vydání:	1994
Předmět:	Materials science Atmospheric pressure business.industry Aerospace Engineering Mechanics Optics Flow velocity Planar laser-induced fluorescence Shock diamond Combustor Supersonic speed business Choked flow Hydroxyl tagging velocimetry
Zdroj:	AIAA Journal. 32:1676-1682
ISSN:	1533-385X 0001-1452
DOI:	10.2514/3.12159
Popis:	A combined experimental and analytical effort was conducted to demonstrate the applicability of OH Doppler-shifted fluorescence imaging of velocity distributions in supersonic combustion gases near and above atmospheric pressure. The experiments were conducted in the underexpanded exhaust flow from a 6.8-atm, 2400-K, H 2 -O 2 -N 2 burner exhausting into the atmosphere. The effects of pulse-to-pulse variations in the dye laser band shape and inplane variations in temperature and pressure were examined in detail. A modification was developed to increase the single-pulse laser bandwidth, thereby increasing the intra-image velocity dynamic range as well as reducing the sensitivity of the velocity measurement to the gas property variations
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::37d21eec32a64294c7132c19e7adba0f https://doi.org/10.2514/3.12159 Zobrazit plný text záznamu