JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
49302000.pdf9.56 MB
titleDevelopment of an active grid adapted to a Low-Swirl burner and measurements of turbulent properties of the flow field
Other Title弱旋回バーナーに適合したアクティブグリッドの開発と流れ場の乱流特性の計測
Author(jpn)Jeon, Inkyu; 立花 繁; Zimmer, Laurent; 西沢 啓
Author(eng)Jeon, Inkyu; Tachibana, Shigeru; Zimmer, Laurent; Nishizawa, Akira
Author Affiliation(jpn)宇宙航空研究開発機構 総合技術研究本部; 宇宙航空研究開発機構 総合技術研究本部; 宇宙航空研究開発機構 総合技術研究本部; 宇宙航空研究開発機構 総合技術研究本部
Author Affiliation(eng)Japan Aerospace Exploration Agency Institute of Aerospace Technology; Japan Aerospace Exploration Agency Institute of Aerospace Technology; Japan Aerospace Exploration Agency Institute of Aerospace Technology; Japan Aerospace Exploration Agency Institute of Aerospace Technology
Issue Date2006-03-31
PublisherJapan Aerospace Exploration Agency (JAXA)
宇宙航空研究開発機構
Publication date2006-03-31
Languageeng
AbstractThe aim of this research is to design a bi-plane active grid to enhance turbulent flow downstream of a low-swirl burner. The active grid is a variation of the original form devised by Makita in 1991. First, adequate ranges for experimental parameters are sought using non-reacting flow. While turbulent intensity is of major interest, homogeneity, isotropy, and integral scale near the nozzle exit are also analyzed by measuring mean and turbulent velocities. In addition, a fully developed inertial subrange is demonstrated by energy spectra analysis. When premixed reacting flow is tested, a turbulent Karlovitz number higher than unity is achieved under various conditions. It indicates that the flame produced is in the thin reaction zone regime on the Peters' diagram. The measurements are implemented using both hot-wire anemometry and particle image velocimetry.
DescriptionJAXA Research and Development Report
宇宙航空研究開発機構研究開発報告
Keywordslow-swirl burner; active grid; flow field; flow velocity; velocity profile; hot-wire anemometer; particle image velocimetry; turbulent flow; swirl generator; swirl number; integral length; 低渦巻バーナ; アクティブグリッド; 流れ場; 流速; 速度プロファイル; 熱線風速計; 粒子画像流速測定法; 乱流; 渦巻発生器; 渦巻数; 積分長
Document TypeTechnical Report
JAXA Category研究開発報告
ISSN1349-1113
SHI-NOAA0049302000
Report NoJAXA-RR-05-055E
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/33216


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.