Accession Number : ADP003054

Title :   A Comparison with Experimental Results of Wave Resistance Predictions Using a Rankine Source Panel Method and a Slender Body Theory,

Corporate Author : SCIENCE APPLICATIONS INC LA JOLLA CA

Personal Author(s) : Sandberg,W. C. ; Scragg,C. A.

Report Date : 17 NOV 1983

Pagination or Media Count : 13

Abstract : This paper presents results from recently completed studies to assess the usefulness of currently available viscous and inviscid computational methods early in the ship design process. The motivation for this effort is the need to develop, for use at an early design stage, a capability for evaluating the effect of local hull form variations on drag and energy consumption. I was decided to carry out computations for two transom stern hull variants for which model test data existed. Viscous hull drag and wave drag were computed by von Kerczek, Scragg, and Stern and subsequently appendage drag by Stern and von Kerczek. The present paper discusses only the wave drag computations. The code WAVE-DRAG was developed by Scragg at S.A. I. and applied to the two test case hulls.

Descriptors :   *Water waves, *Ship hulls, Resistance, Numerical methods and procedures, Viscosity, Drag, Slender bodies, Mathematical prediction, Sources, Coefficients, Naval architecture, Experimental data, Model tests

Distribution Statement : APPROVED FOR PUBLIC RELEASE