Journal
OCEAN ENGINEERING
Volume 34, Issue 13, Pages 1882-1891Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2006.08.015
Keywords
air cavity; air lubrication; drag reduction; wave pattern
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Significant drag reduction of large displacement vessels can be achieved by applying multi-wave air cavities arranged on the hull bottom. Waves generated on the air-water interface of air cavities impose requirements on the dimensions of a hull recess that accommodates the air cavity. At. approximate model for calculating wave patterns in the critical upstream part of long air cavities in a simplified, horizontal-plane geometry is presented in this paper. The influence of the recess planform boundaries and other factors on the wave patterns is studied parametrically. Some hydrodynamic aspects of multi-wave air cavities are discussed. (c) 2007 Elsevier Ltd. All rights reserved.
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