JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
64645000.pdf4.53 MB
title極低温流体中でインデューサに発生するキャビテーションの直接可視化: その3 液体窒素中でのキャビテーションの可視化試験
Other TitleDirect Visualization for Cavitating Inducer in Cryogenic Flow: 3rd Report : Visual Observations of Cavitation in Liquid Nitrogen
Author(jpn)渡邉, 光男; 永浦, 克司; 長谷川, 敏; 新井山, 一樹; 吉田, 義樹; 杉田, 栄一郎
Author(eng)Watanabe, Mitsuo; Nagaura, Katsuji; Hasegawa, Satoshi; Niiyama, Kazuki; Yoshida, Yoshiki; Sugita, Eiichiro
Author Affiliation(jpn)宇宙航空研究開発機構宇宙輸送ミッション本部宇宙輸送系推進技術研究開発センター; 航空宇宙技術振興財団; 宇宙航空研究開発機構宇宙輸送ミッション本部宇宙輸送系推進技術研究開発センター; 宇宙航空研究開発機構宇宙輸送ミッション本部宇宙輸送系推進技術研究開発センター; 宇宙航空研究開発機構宇宙輸送ミッション本部宇宙輸送系推進技術研究開発センター; ダイナックス
Author Affiliation(eng)Space Transportation Proplusion Research and Development Center, Space Transportation Mission Directorate, Japan Aerospace Exploration Agency (JAXA); Foundation for Promotion of Japan Aerospace Technology; Space Transportation Proplusion Research and Development Center, Space Transportation Mission Directorate, Japan Aerospace Exploration Agency (JAXA); Space Transportation Proplusion Research and Development Center, Space Transportation Mission Directorate, Japan Aerospace Exploration Agency (JAXA); Space Transportation Proplusion Research and Development Center, Space Transportation Mission Directorate, Japan Aerospace Exploration Agency (JAXA); Dynax
Issue Date2010-03-31
PublisherJapan Aerospace Exploration Agency (JAXA)
宇宙航空研究開発機構
Publication titleJAXA research and development memorandum
宇宙航空研究開発機構研究開発資料
VolumeJAXA-RM-09-010
Publication date2010-03-31
Languagejpn
eng
AbstractCavitation in cryogenic fluids, e.g., propellants of rocket engines, has a thermodynamic effect because of thermal imbalance around the cavity. The thermodynamic effect on cavitation is beneficial in that it improves cavitation performances due to the delay of cavity growth. In the present work, two experiments were conducted on a three-bladed cavitating inducer in which liquid nitrogen and cold water as working flow were used in order to confirm the thermal effects. Aspects of the cavitation in the inducer were observed by direct optical visualization both in liquid nitrogen and water. The bubbles of the tip vortex cavitation were very fine, and the thickness of the cavitation on the blade surface was very thin in liquid nitrogen compared with those in cold water. The growth of the cavity length along the blade was much suppressed as decrease the cavitation numbers in liquid nitrogen.
DescriptionOriginal contains color illustrations
形態: カラー図版あり
KeywordsCryogenic Inducer, Flow Visualization, Cavitation, Thermodynamic Effect
Document TypeTechnical Report
JAXA Category研究開発資料
ISSN1349-1121
NCIDAA11983593
SHI-NOAA0064645000
Report NoJAXA-RM-09-010
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/16632


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