Numerical Approximation of Ship Hulls.

Abstract

In a wide variety of numerical calculations involving ship hulls it is necessary to have an accurate representation of the hull in terms of some set of basis functions. For the calculation of boundary layer growth along the hull, in which the curvature of the hull plays an important role, a well-behaved representation of the hull is crucial. Computer programs for calculating accurate representations of ship hulls in terms of B-splines are presented here. Data may be taken from offset tables or from offset diagrams (via a digitizing tablet). A two-dimensional parametric smoothing spline is used to fit the data. Additional keywords: Canada; interpolation; Coordinates; transformations (mathematics); user manuals; Fortran; DIGHLL computer program; DIGHLL (Digitize hull); SMHULL computer program; SMHULL (Smooth Hull); French language. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1985
Accession Number
ADA157822

Entities

People

  • D. Hally

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Computer Programs
  • Computers
  • French Language
  • Geometry
  • Language
  • Mathematics
  • Ship Hulls
  • Two Dimensional
  • User Manuals

Readers

  • Approximation Theory.
  • Computer Science.
  • Naval Architecture and Marine Engineering.