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

  • 제55권1호
  • /
  • Pages.75-82
  • /
  • 2018
  • /
  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
권호 표지
DOI QR코드

DOI QR Code

초월공동 수중운동체용 제어핀의 유체력 특성에 대한 실험연구

An Experimental Study on Hydrodynamic Characteristics of a Control Fin for a Supercavitating Underwater Vehicle

  • 정소원 (충남대학교 선박해양공학과) ;
  • 박상태 (충남대학교 선박해양공학과) ;
  • 안병권 (충남대학교 선박해양공학과)
  • Jeong, So-Won (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Park, Sang-Tae (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Ahn, Byoung-Kwon (Department of Naval Architecture & Ocean Engineering, Chungnam National University)
  • 투고 : 2017.10.23
  • 심사 : 2017.12.19
  • 발행 : 2018.02.20
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Wedge-shaped fins are generally used to provide sufficient forces and moments to control and maneuver a supercavitating vehicle. There are four fins placed along the girth of the vehicle, near he tail: two of the fins are horizontal and the other two fins are vertical. In a fully developed supercavitating flow condition, a part of the fin is in a cavity pocket and the other is exposed to water. In this paper, experimental investigations of hydrodynamic characteristics of the wedge-shaped fin models are presented. Experiments were conducted at a cavitation tunnel of the Chungnam National University. We first closely observed the typical formation of wake cavitation and measured lift and drag forces acting on two different test models. Next, using a special device for generating natural and artificial supercavities, we investigated hydrodynamic forces at different cavitation number conditions. This work provides a basis for interpreting the cavity stability and hydrodynamic characteristics of the wedge-shaped control fin for a supercavitating vehicle.

키워드

참고문헌

  1. Ahn, B.K. Lee, T.K. Kim, H.T. & Lee, C.S., 2012. Experimental investigation of supercavitating flows. International Journal of the Society of Naval Architects and Ocean Engineering, 4(2), pp.123-131. https://doi.org/10.2478/IJNAOE-2013-0083
  2. Ahn, B.K. Jeong, S.W. Kim, J.H. Shao, S. Hong, J. & Arndt, R.E.A., 2017. An experimental investigation of artificial supercavitation generated by air injection behind disk-shaped cavitators. International Journal of Naval Architecture and Ocean Engineering, 9(2), pp.227-237. https://doi.org/10.1016/j.ijnaoe.2016.10.006
  3. Garabedian, P.R., 1956. Calculation of axially symmetric cavities and jets. Pacific Journal of Mathematics, 6(4), pp.611-684. https://doi.org/10.2140/pjm.1956.6.611
  4. Jeong, S.W. & Ahn, B.K., 2016. An experimental study on wake cavity flow characteristics of two-dimensional wedge shaped control fins. Journal of the Society of Naval Architects of Korea, 53(3), pp.180-187. https://doi.org/10.3744/SNAK.2016.53.3.180
  5. Kim, J.H. Jang, H.K. Ahn, B.K. & Lee, C.S., 2013. A numerical analysis of the supercavitating flow around three-dimensional axisymmetric cavitators. Journal of the Society of Naval Architects of Korea, 50(3), pp.160-166. https://doi.org/10.3744/SNAK.2013.50.3.160
  6. Plesset, M.S. & Shaffer, P.A., 1948. Cavity drag in two and three dimensions. Journal of Applied Physics, 19(10), pp.934-939. https://doi.org/10.1063/1.1697899
  7. Self, M.W. & Ripken, J.F., 1955. Steady-state cavity studies in a free-jet water tunnel. Washington D.C.: St. Anthony Falls Hydraulic Laboratory, Report No. 47.
  8. Tulin, M., 1953. Steady two-dimensional cavity flows about slender bodies. Maryland: David Taylor Model Basin(DTMB), Report No. 834.
  9. Waid, R.L., 1957. Water tunnel investigation of two-dimensional cavities. California: The Hydrodynamics Laboratory of California Institute of Technology, Report No. E-73.6.
  10. Wu, T.Y., 1955. A free streamline theory for two-dimensional fully cavitated hydrofoils. California: The Hydrodynamics Laboratory of California Institute of Technology, Report No. 21-17.