LIFT AND DRAG ON A MODEL OFFSHORE PIPELINE

The lift and drag forces on a model of a pipeline resting on the ocean floor in a uniform current were measured in a wind tunnel. Measurements of lift and drag were made on the upper cylinder for a Reynolds number range of 5X10 to the 4th power to 1.3X10 to the 5th power. They were obtained using eight strain gages mounted on each of two strain rings, with the output read from a calibrated strip-chart recording. Lift and drag coefficients were calculated from the force measurements. The lift coefficient maintained a value of approximately 1.4 over the Reynolds number range tested. The drag coefficient, however, rose gradually from about 0.8 to 0.9. These results apply to moderate offshore conditions.

• Supplemental Notes:
  • 4th Annual Offshore Technology Conference, held in Houston, Texas, May 1-3, 1972.
• Corporate Authors:

  Offshore Technology Conference

  6200 North Central Expressway
  Dallas, TX  United States  45206
• Authors:
  • Helfinstine, R A
  • Shupe, J W
• Conference:
  • 4th Annual Offshore Technology Conference
  • Location: Houston TX
  • Date: 1972-5-1 to 1972-5-3
• Publication Date: 1972-5

Media Info

• Features: References;
• Pagination: p. 563-572
• Serial:
  • Volume: 1

Subject/Index Terms

• TRT Terms: Construction; Cylindrical bodies; Drag forces; Pipelines; Underwater pipelines
• Old TRIS Terms: Model testing; Pipeline construction
• Subject Areas: Construction; Marine Transportation; Pipelines; Terminals and Facilities;

Filing Info

• Accession Number: 00050215
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Paper 1568 Preprint
• Files: TRIS
• Created Date: Nov 14 1974 12:00AM