Hydrodynamic evaluation of high-speed semi-SWATH vessels

High-speed semi-displacement vessels have enjoyed rapid development and widespread use over the past 25 years. Concurrent with their growth as viable commercial and naval platforms, has been the advancement of three-dimensional computational fluid dynamics codes that simulate steady and unsteady free surface potential flows around ships. The most promising of these computer-based simulations employ a variation of the Rankine Panel Method, or R.P.M. R.P.M.'s offer greater prediction accuracy than industry standard two-dimensional strip and slender-body methods, and are enjoying increased use in practical vessel design due to their reliability and low relative cost. This study uses one such code to examine the high-speed hydrodynamic performance of a slender, semi-SWATH, prototype catamaran with variable demi-hull separation. Hull separation's influence on vessel performance was studied in terms of calm water resistance and seakeeping response in a bare-hull state, and when equipped with quasi-active lifting appendage control. Analysis was performed on a 10.5m, 10,000kg reduced waterplane area catamaran designed by Lockheed Martin Maritime Systems & Sensors.

Department dc:contributor.department

Massachusetts Institute of Technology. Dept. of Mechanical Engineering.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2007

Author dc:creator

• Guttenplan, Adam (Adam David)

Advisor dc:contributor.advisor

• Paul D. Sclavounos.

• Mechanical Engineering.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/39726

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/39726