JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
64672020.pdf886.84 kB
Other TitleUnsteady Thrust Characteristics of Water Rocket
Author(jpn)板倉, 嘉哉; 本田, 祐基
Author(eng)Itakura, Yoshiya; Honda, Yuki
Author Affiliation(jpn)千葉大学教育学部; 千葉大学教育学部
Author Affiliation(eng)Chiba University, Faculty of Education; Chiba University, Faculty of Education
Issue Date2010-02-26
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication titleJAXA special publication: Proceedings fo 41st Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2009
宇宙航空研究開発機構特別資料: 第41回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2009論文集
Publication date2010-02-26
AbstractUnsteady thrust characteristics of water rocket have been investigated experimentally. The results of the observation by a high-speed camera show that the state of the operation fluid flow is classified into three patterns. The time history of the thrust is observed oscillating change, and the frequency characteristics are analyzed by FFT and DWT. However, all the causes of oscillating behavior of the thrust are not elucidated. The transition time from liquid-phase flow to churn flow buried in the oscillating thrust is detected as a discontinuous point in the thrust curve by applying wavelet transform technique.
DescriptionOriginal contains color illustrations
Meeting Information: 18 June-19 June, 2009, Japan Aerospace Exploration Agency
形態: カラー図版あり
会議情報: 平成21年6月18-19日. 宇宙航空研究開発機構調布航空宇宙センター
Document TypeConference Paper
JAXA Category特別資料
Report NoJAXA-SP-09-011

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