Model tests on resistance and seakeeping performance of wave-piercing high-speed vessel with spray rails
Model tests on resistance and seakeeping performance of wave-piercing high-speed vessel with spray rails
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DOI：
10.1016/j.ijnaoe.2016.05.010
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发表时间：
2016-09
影响因子：
2.2
通讯作者：
Jeonghwa Seo;Hak-Kyu Choi;U. Jeong;Dong-Kun Lee;S. Rhee;C. Jung;Jaehoon Yoo
中科院分区：
文献类型：
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作者：
Jeonghwa Seo;Hak-Kyu Choi;U. Jeong;Dong-Kun Lee;S. Rhee;C. Jung;Jaehoon Yoo
通过拖曳舱的一系列模型试验，研究了高速单体船的阻力和耐浪性能。船身有一个细长的能穿波的船首，圆形的舱底，船尾有一个小的死角。首先在静水中对裸船体进行了测试，然后在喷雾轨道上进行了测试。设计喷流轨控制水流方向，在船底产生水动力升力，减小船体纵倾角，增大船体上升。在设计航速下，裸船体的最大纵倾度为4.65°，但在最佳位置的喷淋轨道使纵倾度减小了0.97°。静水试验后，研究了船舶在头海的运动。将钢轨安装在最佳位置，有效地降低了俯仰和升沉运动响应。前垂直方向的垂直加速度减小了11.3%。根据模型试验结果推算出全尺寸时的有效功率，结果表明喷淋轨道对船体的阻力性能没有负面影响，但在静水和波浪中可以有效地稳定船舶。
The resistance and seakeeping performance of a high-speed monohull vessel were investigated through a series of model tests in a towing tank. The hull had a slender wave-piercing bow, round bilge, and small deadrise angle on stern. Tests on the bare hull in calm water were first conducted and tests on spray rails followed. The spray rails were designed to control the flow direction and induce a hydrodynamic lift force on the hull bottom to reduce trim angle and increase rise of the hull. The maximum trim of the bare hull was 4.65° at the designed speed, but the spray rails at optimum location reduced trim by 0.97°. The ship motion in head seas was examined after the calm water tests. Attaching the rails on the optimum location effectively reduced the pitch and heave motion responses. The vertical acceleration at the fore perpendicular reduced by 11.3%. The effective power in full scale was extrapolated from the model test results and it was revealed that the spray rails did not have any negative effects on the resistance performance of the hull, while they effectively stabilized the vessel in calm water and waves.