한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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반구형 전두부 실린더에서 발생하는 캐비테이션 유동의 압축성 효과에 대한 수치해석 연구

NUMERICAL ANALYSIS OF CAVITATION WITH COMPRESSIBILITY EFFECTS AROUND HEMISPHERICAL HEAD-FORM BODY

  • 박선호 (한국해양대학교 해양공학과) ;
  • 이신형 (서울대학교 조선해양공학과) ;
  • 신병록 (창원대학교 기계공학과)
  • Park, S. (Dept. of Ocean Engineering, Korea Maritime and Ocean Univ.) ;
  • Rhee, S.H. (Dept. of Naval Architecture and Ocean Engineering, Seoul Nat'l Univ.) ;
  • Shin, B.R. (Dept. of Mechanical Engineering, Changwon Nat'l Univ.)
  • 투고 : 2013.07.29
  • 심사 : 2013.10.07
  • 발행 : 2013.12.31
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초록

Cavitation on an axi-symmetric hemispherical head-form body was studied using an Reynolds-averaged Navier-Stokes equations solver based on a cell-centered finite volume method. To consider compressibility effects on the vapor phase and cavity interface, a pressure-based compressible flow CFD code was developed. To validate the developed CFD code, cavitating flow around the hemispherical head-form body was simulated using pressure-based incompressible and compressible CFD codes and validated against existing experimental data in the three-way comparison. The cavity shedding behavior, length of re-entrant jet, drag history, and Strouhal number of the hemispherical head-form body were compared between two CFD codes. The results, in this paper, suggested that the computations of cavitating flow with compressibility effects improve the description of cavity dynamics.

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참고문헌

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