A COMPUTING METHOD FOR THE ANALYSIS OF WATER IMPACT OF ARBITRARY SHAPED BODIES

A computational method for the water impact of arbitrary shaped bodies is proposed. The body-fitted coordinate system is used to model the arbitrary profile of the rigid body surface and the transient deformation of the free surface is solved by the fractional volume method. With this combination of numerical techniques, the rigid surface and the free surface boundary conditions are naturally treated at the intersection of both surfaces which improves the stability and accuracy of the numerical simulation. To verify the computational method, classical problems of water impact of wedges and circular cylinders are studied. Water impact of a ship bow section is simulated to illustrate the applicability of the method to practical ship design problems. Cases in which the body enters an initially calm water surface with a constant velocity were considered. The results of the simulations were examined against the existing analytical theories and published experimental data.

  • Supplemental Notes:
    • J Soc Naval Arch Japan, v 176, Dec 1994, p 233 [8 p, 17 ref, 10 fig]
  • Authors:
    • Arai, M
    • Cheng
    • L-Y
    • INOUE, Y
  • Publication Date: 1994

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00710717
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM