Experimental study on dynamic instability of re-entry capsule-shaped body using pressure sensitive paint

Daisuke Sugimoto, Hiroki Nagai, Keisuke Asai, Koju Hiraki

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

Re-entry capsule with flat body shapes tends to be dynamically unstable in the transonic speed range, and sometimes fall into self-exited pitching oscillation. In this study, the Phase Lock Method with a fast-responding Pressure-Sensitive Paint (PSP) has been employed to visualize unsteady pressure distribution on a capsule model undergoing the pitching motion. In addition, the pressure fluctuation was measured using time-series high-speed camera PSP images. Analysis of the PSP results together with pitch angle measurement has revealed that the phase delay of the base surface pressure acts as dynamically unstable moment in the low pitch angles.

本文言語English
ホスト出版物のタイトル48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
出版ステータスPublished - 2010 12 13
イベント48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Orlando, FL, United States
継続期間: 2010 1 42010 1 7

出版物シリーズ

名前48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

Conference

Conference48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
国/地域United States
CityOrlando, FL
Period10/1/410/1/7

ASJC Scopus subject areas

  • 航空宇宙工学

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