SHIP CENTERPLANE SOURCE DISTRIBUTION

A procedure for calculating the irrotational flow about a double ship model, by solving a Fredholm integral equation of the first kind for a centerplane source distribution, is described. The special problems of determining the curve in the centerplane bounding the source distribution and of smoothing sharply peaking integrands, to improve the accuracy of discretization of the integral equation, are treated. Application to ellipsoids, for which the results of the calculations can be compared with an exact solution, and to a ship form with parabolic lines, for which experimental data are available for comparison, indicate that satisfactory accuracy can be obtained by the method. A justification for using a centerplane distribution is that, as is shown, a line integral which appears in the higher-order solution for the flow about a ship form at nonzero Froude numbers can be avoided with such a distribution.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00224502
• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Miloh, T
  • Landweber, L
• Publication Date: 1980-3

Media Info

• Features: References;
• Pagination: p. 8-23
• Serial:
  • Journal of Ship Research
  • Volume: 24
  • Issue Number: 1
  • Publisher: Society of Naval Architects and Marine Engineers
  • ISSN: 0022-4502
  • EISSN: 1542-0604
  • Serial URL: https://onepetro.org/jsr

Subject/Index Terms

• TRT Terms: Boundary layer; Boundary layer flow; Flow; Free surface; Hulls; Pressure; Ships; Structural models; Surfaces; Velocity
• Uncontrolled Terms: Flow velocity; Pressure distribution; Ship models
• Old TRIS Terms: Free surface effects; Hull boundary layers; Hull surfaces; Thin ship theory
• Subject Areas: Bridges and other structures; Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00311134
• Record Type: Publication
• Files: TRIS
• Created Date: May 7 1980 12:00AM