STUDY ON THE NON LINEAR FREE SURFACE PROBLEM AROUND THE BOW

The general equation of flow near the free surface is derived by considering up to 2nd order terms of velocity components. It is given by the non-linear 2nd partial differential equation, whose mathematical type is classified by the sign of its discriminant. By solving the discriminant approximately, clear explanation of the breakdown of bow wave in deep water, which is important for a full hull form, can be given. The assumptions used in the calculation are supported by the model experiment of Inuid model S. 201 and the fuller wallsided ship model. According to the above test results, the law of conservation of energy is maintained by the occurence of vorticity with lateral axis during the breakdown of bow wave. Thus the mechanism of the occurence of the wave breaking resistance becomes clear.

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    Mitsubishi Heavy Industries Limited

    5-1 Marunouchi, 2-chome, Chiyoda-Ku
    Tokyo 100,   Japan 
  • Publication Date: 1974-10

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  • Accession Number: 00080064
  • Record Type: Publication
  • Source Agency: Mitsubishi Heavy Industries Limited
  • Report/Paper Numbers: Series No. 31
  • Files: TRIS
  • Created Date: May 1 1975 12:00AM