Numerical Investigation on a High-Speed Transom Stern Ship Advancing in Shallow Water

被引:0
|
作者
Zhao, Zhi-Lei [1 ]
Yang, Bai-Cheng [1 ]
Zhou, Zhi-Rong [2 ]
机构
[1] Dalian Maritime Univ, Nav Coll, Dalian 116026, Peoples R China
[2] Guangxi Elect Power Design Inst Co Ltd, China Energy Engn Grp, Nanning, Peoples R China
关键词
Rankine higher-order boundary element method; wave-making resistance; squat; wave pattern; shallow water; SQUAT;
D O I
10.3390/jmse12060867
中图分类号
U6 [水路运输]; P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
A high-speed advancing ship will cause significant squats in shallow water, which could increase the risk of grounding. To this end, a program based on the Rankine higher-order boundary element method (HOBEM) is developed to investigate a high-speed displacement ship with a transom stern moving in shallow water. The nonlinear free surface condition is satisfied by adopting an iterative algorithm on the real free surface. The transom condition is considered by implementing a modified transom condition. Computations of wave-making resistance, sinkage and trim in deep water are first performed, and satisfactory agreement is achieved by comparing with the experimental results; the simulations are then extended to the shallow water case. It indicates that the present method can provide a suitable balance of practicability and robustness, which can be considered as an efficient tool for the guidance in ship design stage.
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页数:17
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