THE CALCULATION OF NONLINEAR BOW WAVES

The 2-1/2 dimensional bow flow theory (Ogilvie, 1972, Chapman, 1976) has been evaluated through comparisons with experimental results for the Wigley hull and for Ogilvie's wall-sided wedge. Two separate Lagrangian numerical methods were used in the evaluation to check for consistency and accuracy. The theory predicted qualitatively well the wave steepness, wave speed and wave amplitude away from the hull. The phase of the bow wave and the surface elevation immediately at the bow were incorrectly predicted. An extension to the theory was proposed to significantly improve the predictions. Preliminary results including the correction are encouraging. Since one of the Lagrangian methods used in the computations is capable of tracking the free surface during and after breaking, the method promises to provide a technique for calculating bow flows that include breaking and spilling waves.

  • Supplemental Notes:
    • Conference paper
  • Authors:
    • Fritts, M J
    • Meinhold, M J
    • von Kerczek, C H
  • Conference:
  • Publication Date: 0

Media Info

  • Features: References;
  • Pagination: 14p., incl. discuss.

Subject/Index Terms

Filing Info

  • Accession Number: 00659576
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM