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

Daisuke Sugimoto, Hiroki Nagai, Keisuke Asai, Koju Hiraki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Publication statusPublished - 2010 Dec 13
Event48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Orlando, FL, United States
Duration: 2010 Jan 42010 Jan 7

Publication series

Name48th 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
CountryUnited States
CityOrlando, FL
Period10/1/410/1/7

ASJC Scopus subject areas

  • Aerospace Engineering

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