THREE-DIMENSIONAL EFFECTS ON WAVE FORCES ON HORIZONTAL MEMBERS OF A SEMISUBMERSIBLE

The end effect and the effect of columns on wave forces on a lowerhull submerged in regular waves with its axis parallel to the wave crests were investigated experimentally. A two-dimensional lowerhull cylinder and finite-length lowerhull models with and without columns are used in force measurements, velocity measurements and flow visualizations. The results of the experiments showed that the wave force reduction decreases in the case of the finite-length lowerhull model with columns due to the disappearance of the circulating flow at the end and the junctions with columns. The results also demonstrated that the vertical wave forces on the finite- length lowerhull model with columns are asymmetric because of the flow accelerated between the columns.

  • Supplemental Notes:
    • J Soc Naval Arch Japan, v 176, Dec 1994, p 175 [10 p, 11 ref, 20 fig]
  • Authors:
    • Otsuka, K
    • Ikeda, Y
    • Ikeda, K
  • Publication Date: 1994

Language

  • Japanese

Subject/Index Terms

Filing Info

  • Accession Number: 00710714
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM