NONLINEAR BOW FLOWS--AN EXPERIMENTAL AND THEORETICAL INVESTIGATION

The flow near a ship's bow is investigated by examining the flow in front of horizontal surface piercing cylinders. This two-dimensional flow can be construed as an approximation of the centerplane flow of a blunt three-dimensional bow. Bow-wave measurements in a steady stream were made for cylinders of two different shapes. Fair agreement between experiments and an existing theory was found for the location and wave slope of a free-surface separation point. Physical observations, as well as data analysis, also revealed a heretofore undocumented oscillatory phenomena. Above a certain critical speed, the bow waves oscillate at a characteristic frequency that can be distinctly measured. An Eulerian-Langrangian formulation is used to solve the inviscid, unsteady, and fully nonlinear flow about an arbitrary bow shape.

  • Supplemental Notes:
    • Conference paper
  • Authors:
    • Grosenbaugh, M A
    • Yeung, R W
  • Conference:
  • Publication Date: 0

Media Info

  • Features: References;
  • Pagination: 20p., incl. discuss.

Subject/Index Terms

Filing Info

  • Accession Number: 00659566
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM