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Indexed by:会议论文

Date of Publication:2012-06-17

Included Journals:EI、Scopus

Page Number:792-798

Abstract:In this paper, a 2D numerical model for focused waves on uniform currents is founded based on the fully nonlinear potential theory. The model is developed by using a time-domain higher-order boundary element method (HOBEM) combined with a mixed Eulerian-Lagrangian technique as a time marching process. The focused wave trains are numerically generated by a piston wavemaker on a uniform current. The proposed model is verified by comparison with the published results on monochromatic wave interaction with current, bichromatic waves interaction with current over a plane slope and pure focused wave groups. Then the influence of uniform currents on the properties of the focused waves, including maximum focused wave crest, shift of focal position and focal time and spectrum bandwidth, is further studied. Copyright ? 2012 by the International Society of Offshore and Polar Engineers (ISOPE).