An experimental and theoretical investigation is conducted into the nature of the wave motion past (and under) a semi-circular cylinder suspended a short distance above the sea bottom. Particular attention is drawn to the flow through the gaps at the cylinder's edges. The pressures both inside and outside the cylinder are computed and the resulting forces plotted. A significant reduction in the horizontal force is noted for very small gap widths. This result is supported by force measurements in the wave tank, as is the discovery that the vertical force is largely affected by a first order constant pressure acting inside the cylinder. (Author)

  • Supplemental Notes:
    • Sponsored in part by Doherty Chartible Foundation, and Chicago Bridge and Iron Company
  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Civil Engineering, 77 Massachusetts Avenue
    Cambridge, MA  United States  02139
  • Authors:
    • Halkyard, J E
  • Publication Date: 1971-11-1

Media Info

  • Pagination: 217 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00033672
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NOAA-71122712 PhD Thesis
  • Files: TRIS
  • Created Date: Aug 15 1972 12:00AM