Some warship bulbous bow and stern wedge investigations

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TypeArticle
Journal titleTransactions of the Royal Institution of Naval Architects
Volume130
Pages135150; # of pages: 16
AbstractA conventional frigate hullform was modified by the addition of four bow bulbs (herein distinguished from bow sonar domes) and three stern wedges with three different angles. All designs were tested, singly or as combinations of bulbs and wedges, for resistance in still water and three, the basis form and two bow bulb variants, were tested in regular head waves to evaluate seakeeping and slamming behaviour. Worthwhile reductions in fuel consumption are achievable with bulbs or wedges, dependent upon bulb design, wedge angle, propulsion machinery characteristics, and service speed profile. The bulbous bows tested in wave had no important adverse effect on seakeeping, and particularly slamming behaviour.
Publication date
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedYes
IdentifierRR-HYD-11
NRC number5913
NPARC number8896227
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Record identifier0c30bb48-11e7-4774-bccc-6eeb2007fed5
Record created2009-04-22
Record modified2016-05-09
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