WAVE FORCES ON PIPES NEAR THE OCEAN BOTTOM

Where wake effects are negligible, potential flow calculations predict well the lift and added mass forces acting on pipelines near the ocean floor when subjected to time dependent flows. Wake effects have a significant influence on the flow conditions and measured frequencies of vortex shedding can predict the drag force acting on the cylinder. The Strouhal number is a function of the gap below the cylinder. The added mass coefficient is much larger when the cylinder is near the boundary than when it is a free stream.

• Supplemental Notes:
  • Presented at the Eighth Annual Offshore Technology Conference, Houston, Texas, May 3-6, 1976.
• Corporate Authors:

  Offshore Technology Conference

  6200 North Central Expressway
  Dallas, TX  United States  45206
• Authors:
  • Nath, J H
  • Yamamoto, T
  • Wright, J C
• Conference:
  • Presented at the Eighth Annual Offshore Technology Conference, Houston, Texas, May 3-6, 1976.
• Publication Date: 1976-5

Media Info

• Features: References;
• Pagination: p. 741-748

Subject/Index Terms

• TRT Terms: Force; Pipelines; Preservation; Scour; Vortex shedding; Waves
• Old TRIS Terms: Pipeline protection; Wave forces on structures
• Subject Areas: Design; Marine Transportation; Pipelines; Terminals and Facilities;

Filing Info

• Accession Number: 00138192
• Record Type: Publication
• Source Agency: Offshore Technology Conference
• Report/Paper Numbers: V1, OTC 2496 Proceeding
• Files: TRIS
• Created Date: Aug 23 1976 12:00AM