A physical hydraulic model study was conducted to investigate the source of extremely high hydrodynamic forces that were acting normal to the longitudinal axis of deep draft tankers while moored to a massive T-head dock in the Mississippi River, and to test the effectiveness of remedial structures placed in the river for the purpose of reducing the lateral mooring forces. Remedial structures, installed for the purpose of either reducing the velocity of flow between the ship and bank or to deflect the current around the ship, were not effective in reducing the forces. The ship and the dock structure act in conjunction to alter the flow pattern around the ship with the result of increasing the effective angle of attack between the ship and the current. In order to eliminate the lateral mooring forces, either the ship must be rotated, bow towards the bank, through an angle equal to the effective angle of attack, or the velocity of flow on both sides of the ship must be made equal.

Media Info

  • Features: References;
  • Pagination: p. 419-430

Subject/Index Terms

Filing Info

  • Accession Number: 00331695
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Conf Proc
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM