CHARACTERISTICS OF LIFT FORCES ON A CIRCULAR PILE IN WAVES

Hydraulic characteristics of lift forces on a circular pile due to regular waves are investigated experimentally. The generation of lift forces is discussed. It is found that this is based on the unsymmetry of vortices, and that the characteristics of lift forces, namely, the frequency and the magnitude, are influenced by the vortex patterns. Furthermore, the lift coefficients are calculated from the experimental resuts, and an empirical formula for estimation of the lift coefficients is proposed under some theoretical considerations. Finally, it is concluded that the total wave force for the design of ocean structures has to be considered in terms of the vectorial sum of the in-line forces and the lift forces.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/2080364
• Corporate Authors:

  Japan Society of Civil Engineers

  1-chome, Yotsuya, Shinjuku-ku
  Tokyo,   Japan  160-0004

  Japan Society of Civil Engineers

  1-chome, Yotsuya, Shinjuku-ku
  Tokyo,   Japan  160-0004
• Authors:
  • Sawaragi, T
  • Nakamura, T
  • Kita, H
• Publication Date: 1976-12

Media Info

• Features: References;
• Serial:
  • Coastal Engineering in Japan
  • Volume: 19
  • Publisher: Japan Society of Civil Engineers
  • ISSN: 0578-5634

Subject/Index Terms

• TRT Terms: Analysis; Offshore platforms; Water waves; Waves
• Old TRIS Terms: Lifting forces on pilings; Marine platforms; Wave effects
• Subject Areas: Bridges and other structures; Hydraulics and Hydrology; Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00165402
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Nov 23 1977 12:00AM