Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
권호 표지
DOI QR코드

DOI QR Code

Study of the Cavitation Inception Speed (CIS) Improvement Through the Propeller Design and the Stern Appendage Modification

프로펠러 설계 및 선미 부가물 수정에 따른 캐비테이션 초기발생 선속(CIS) 성능 향상 연구

  • Jong-Woo Ahn (Korea Research Institute of Ships & Ocean Engineering) ;
  • Gun-Do Kim (Korea Research Institute of Ships & Ocean Engineering) ;
  • Bu-Geun Paik (Korea Research Institute of Ships & Ocean Engineering) ;
  • Young-Ha Park (Korea Research Institute of Ships & Ocean Engineering) ;
  • Han-Shin Seol (Korea Research Institute of Ships & Ocean Engineering)
  • 안종우 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 김건도 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 백부근 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 박영하 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 설한신 (한국해양과학기술원 부설 선박해양플랜트연구소)
  • Received : 2023.04.17
  • Accepted : 2023.06.09
  • Published : 2023.08.20
Download PDF
⟨ Previous Next ⟩

Abstract

In order to improve the propeller Cavitation Inception Speed (CIS) performance, it needs to modify the propeller geometry and the wake distribution that flows into the propeller. In the previous study, the twisted angles of the V-strut were modified to improve propeller CIS, cavitation behavior and pressure fluctuation performances. Then the propeller behind the modified V-strut (New strut) showed better cavitation characteristics than that behind the existing V-strut (Old strut). However, the CIS of Suction Side Tip Vortex (SSTV) and Pressure Side Tp Vortex (PSTV) showed a big difference at behind each V-strut. In this study, the balance design is conducted to minimize the difference between SSTV CIS and PSTV CIS at behind each V-strut. To improve the propeller CIS performance, 1 propeller is designed at behind the old strut and 3 propellers are designed at behind the new strut. The propeller CIS is increased through the balance design and the stern appendage modification. The final propeller CIS is increased about 5.3 knots higher than that of the existing propeller at behind the old strut. On the basis of the present study, it is thought that the better improvement method for the propeller CIS would be suggested.

Keywords

Acknowledgement

본 연구는 산업통상자원부와 방위사업청이 지원하는 민군겸용 기술개발사업 19-CM-MU-10 (PNS4520, 3차원 곡면형 비틀림 방향타 기술)의 지원으로 수행되었으며 이에 감사드립니다.

References

  1. Ahn, J.W. Kim G.D. Kim, K.S. and Park Y.H., 2015. Performance trial-test of the full-scale driving pump for the Large Cavitation Tunnel(LCT). Journal of Society of Naval Architects of Korea, 52(6), pp.428-434. https://doi.org/10.3744/SNAK.2015.52.6.428
  2. Ahn, J.W., Park, Y.H., Kim, G.D., Paik, B.G., Seol, H.S. and Park, I.R., 2023. Study of the propeller cavitation performance improvement through the stern appendage modification. Journal of Society of Naval Architects of Korea, 60(1), pp.428-434. https://doi.org/10.3744/SNAK.2023.60.1.1
  3. Ahn, J.W., Park, Y.H., Paik, B.G. and Seol, H.S., 2022. Method for installing a dummy body that reproduces the stern flow of a model ship in a large cavitation tunnel, Patent number 10-2393987.
  4. McCormick, B.W., 1962. On cavitation produced by a vortex trailing from a lifting surfaces. Journal of Basic Engineering, pp.369-379.
  5. Paik, B.G., Ahn, J.W., Seol, H.S., Park, Y.H., Kim, K.S. and Cheon, H.G., 2017. Development of LDV(Laser Doppler Velocimetry) for measuring three dimensional hull wake of ship model in large cavitation tunnel, Journal of Society of Naval Architects of Korea, 54(6), pp.515-521. https://doi.org/10.3744/SNAK.2017.54.6.515
  6. Park, I.R., Kim, J.I., Kim, K.S., Ahn, J.W., Park, Y.H. and Kim, M.S., 2016, Numerical analysis of the wake of a surface ship model mounted in KRISO large cavitation tunnel, Journal of the Society of Naval Architects of Korea, 53(6), pp.494-502. https://doi.org/10.3744/SNAK.2016.53.6.494
  7. Park, I.R., Kim, J.I., Paik, B.G. and Seol, H.S., 2021. Numerical study on tip vortex cavitation inception on a foil, Journal Applied Sciences, 7332.
  8. Siemense, 2018. STAR-CCM+ 11.04 User Guide, URL: https://support.industrysoftware.automation.siemens.com/general/documentation.shtml [Accessed 1 January 2018].