국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Heat Flux Measurements by a Slug Calorimeter in an Arc Heated Flow
저자	Yasuo WATANABE, Takashi MATSUZAKI, Kiyomichi ISHIDA, Kazuyuki MIHO, Toshio FUKUI, Osamu HAMAMURA
Keyword	high enthalpy flow; heat transfer; catalytic effect
URL	http://send.nal.go.jp/send/jpn/dlpdf.php3/naltr0001388.pdf?id=NALTR0001388
보고서번호	NAL TR-1388
발행년도	1999.06
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	This paper shows the application of a slug type calorimeter to the heat flux measurements of an arc-heated flow, and evaluates the effect of slug surface coatings with differing catalytic efficiency on measured heat flux. Metallic coatings are more catalytic and result in higher heat flux values than coating containing silica. These results are in accordance with the known order of catalytic effectiveness. Measured heat flux values agree in magnitude and lie within a factor of 1.8 of the values obtained by Gardon type calorimeters. Presumed sources of the difference are the difference in sensing areas, ambiguity of surface characteristics, and flow field nonuniformity.