INHERENT SCATTER OF WAVE FORCES ON SUBMERGED STRUCTURES

A mathematical model was developed for predicting the scatter of wave forces on offshore structures (e.g., pilings and pipelines); it was based on an analysis of the effects of distortions in the flow pattern under the wave that are induced by the structure itself during preceding wave cycles in the form of wakes for the case of large amplitude oscillations and velocities of sufficient magnitude to cause turbulent flow and to generate drag forces that are large compared with the inertial forces. The model gave values for the drag forces in good agreement with the experimental data of Keulegan and Carpenter and with experimental data on the drag forces on an oscillating body in a fluid obtained in a Ryon wave tank at Rice University. A graphical solution for arbitrarily reversing flows was obtained.

• Supplemental Notes:
  • ASME Petroleum Division-Pressure Vessels and Piping Division Joint Conference, Dallas, Texas, Sept. 22-26, 1968.
• Corporate Authors:

  ASME Petroleum Div-Press Ves & Pip Div Joint Conf

  345 East 47th Street
  New York, NY  United States  10017
• Authors:
  • Beckman, H
  • McBride, C M
• Publication Date: 1968-9

Media Info

• Features: References;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Construction; Force; Mathematical models; Pipelines; Support piles; Underwater pipelines; Water waves; Waves
• Old TRIS Terms: Pipeline construction; Wave forces on structures
• Subject Areas: Construction; Design; Hydraulics and Hydrology; Marine Transportation; Pipelines; Terminals and Facilities;

Filing Info

• Accession Number: 00056048
• Record Type: Publication
• Source Agency: American Petroleum Institute
• Report/Paper Numbers: ASME #68-Pet-7 Paper
• Files: TRIS
• Created Date: Jun 24 1974 12:00AM