Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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A NUMERICAL STUDY ON THE ROLL LOCK-IN OF A CANARD-CONTROLLED MISSILE WITH FREELY SPINNING TAILFINS

자유회전 테일핀을 갖는 미사일에 대한 Roll Lock-in 현상의 수치적 연구

  • 양영록 (경상대학교 기계항공공학부) ;
  • 김문석 (한국항공우주산업주식회사) ;
  • 명노신 (경상대학교 기계항공공학부 및 항공기 부품 기술 연구소) ;
  • 조태환 (경상대학교 기계항공공학부 및 항공기 부품 기술 연구소)
  • Published : 2009.12.31
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Abstract

In this study, roll lock-in phenomena of freely spinning tailfins were investigated by a CFD code. To analyze a motion of freely spinning tailfins, this research use a Chimera method, an Euler code and a 6 degrees of freedom analysis. The numerical results of aerodynamic characteristics and roll rates of a canard-controlled missile with freely spinning tailfins show a good agreement with wind tunnel test results. Using the roll rates calculation result of freely spinning tailfins, roll lock-in phenomena is confirmed. Roll lock-in phenomena and Roll lock-in states can be predicted through effects of the induced vortex of the canards control and the analysis of the rolling moments of tailfins due to the bank angle.

Keywords

References

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