Resistance reduction by increased beam for displacement-type ships

S. M. Çalişal*, Ö Gören, D. Bülent Danişman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The resistance of a conventional hull with a parallel middlebody was compared with its modified version having no parallel middlebody. The modified hull was obtained by parabolizing the waterlines, that is, by extending the waterlines continuously about the middlebody, which results in an increased beam and elimination of shoulders. Numerical and experimental results suggest that there could be a significant reduction in the ship's EHP by parabolizing the waterlines at modest Froude numbers. Also, a theoretical justification based on Michell's integral is presented.

Original languageEnglish
Pages (from-to)208-213
Number of pages6
JournalJournal of Ship Research
Volume46
Issue number3
Publication statusPublished - Sept 2002
Externally publishedYes

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