국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	PLIF Imaging Measurements of OH and Temperature Distribution in Burning Flowfields
저자	Yukinori SAKIYAMA, Yoji KUROSAWA, Mitsuo GOMI, Kazuo SUZUKI
Keyword	PLIF; OH; temperature measurement; ram combustor; V-gutter
URL	http://send.nal.go.jp/send/jpn/dlpdf.php3/naltr0001394.pdf?id=NALTR0001394
보고서번호	NAL TR-1394
발행년도	1999.11
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	The main objective of this study is to confirm the technique of Planar Laser-Induced Fluorescence (PLIF) for acquiring the planar images of OH radical and temperature distribution in burning flowfields. Fluorescence was generated with an Nd쩩AG- pumped dye laser whose output was frequency doubled to provide appropriate UV radiation, and OH fluorescence recorded using a two-dimensional ICCD camera. Temperature was derived from the dual-wavelength OH PLIF measurements ( two-line method). In order to evaluate the systematic errors on measurements, the first OH PLIF experiments were conducted for laminar flame using a Bunsen burner. It was shown that the uncertainty of the OH relative concentration is of the order of 15%, and temperature within 100 degrees, respectively. In the next experiment we performed, application measurements to burning flow behind ram flameholders at atmospheric pressure. Good images of OH distribution were obtained and we discuss here the differences between the results on three V-gutter models of the ram flameholder. It was noted however that temperature measurements were difficult because of the highly turbulent fluctuations in the flame, which may were expect to introduce more systematic errors into non-simultaneous dual-wavelength measurements.