• Title/Summary/Keyword: 선미부가물

Search Result 3, Processing Time 0.02 seconds

An Experimental Study on the Effects of Afterbody Appendages and Hull Form on the Manoeuvrability of a Container Carrier (컨테이너 운반선의 조종성능에 미치는 선미 부가물과 선미형상의 효과에 관한 실험적 연구)

  • Ho-Young Lee;Deuk-Joon Yun
    • Journal of the Society of Naval Architects of Korea
    • /
    • v.35 no.3
    • /
    • pp.38-45
    • /
    • 1998
  • In this parer, the effects of a skeg, rudder and stern hull form on the manoeuvrability of a container carrier with small length to draft ratio have been investigated through a series of model test. Rudder open water tests and PMM tests were carried out with varying rudder area, afterbody appendages and stern hull form to investigate their effects on the manoeuvrability. The MMG model developed in Japan was used for the manoeuvring simulation with experimentally obtained hydrodynamic coefficients. The result showed that the effects by the variation of stern profile and the skeg below stern bulb are much larger than those by any other types of appendages in improving directional stability of the vessel.

  • PDF

A Study on the Speed Effects of Afterbody Appendage for the Container Carrier (컨테이너 운반선의 선미부가물에 의한 속도성능 향상에 대한 연구)

  • Lim, Chae-Seong;Park, Dong-Woo
    • Special Issue of the Society of Naval Architects of Korea
    • /
    • 2007.09a
    • /
    • pp.32-42
    • /
    • 2007
  • Container vessels are required to have a large KMT to load many containers which requires a wide transom stern form. The wide transom stern generates large stern waves particularly at the scantling draft. This means that reducing the stern wave leads to resistance reduction. Numerical analyses and Model tests for duck-tail of the stern part have been performed to reduce the resistance of the container vessel having the wide transom on the scantling draft and optimize the form of duck-tail with the change of the design parameter i.e. length and edge height. The optimized duck-tail increases the speed by 0.8 % at scantling draft.

  • PDF