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高速三體船於環流水槽實驗之阻力性能探討

Study of Drag Characteristic for a High-Speed Trimaran Model in Circulating Tunnel

摘要


本研究主要是針對一縮小1/100比例之高速三體船模型於環流水槽中進行船模試驗,並且藉由改變船模中體與側體的橫向間距、縱向間距、船模吃水深度及船速,探討船體結構對阻力性能的影響。實驗結果顯示,三體船於低速行駛時由於浸水面積比傳統單體船型大,並無阻力特性優勢,在設計經濟航速時佛勞數必須大於0.2才能獲得較好之阻力特性。

並列摘要


In this work, a high-speed trimaran model of a scale of 1:100 was experimented in a circulating water channel. There are three control factors were investigated in this paper, that is, transverse span, longitudinal position and draft, and one noise factor-ship speed, which were used to conduct the parameter design in this work. The result shows that, on the condition of low speed, a trimaran can not offer better drag characteristic than a traditional mono hull ship, due to the fact that the area under water for trimaran is large. Better drag characteristic can be achieved for a trimaran only as Froude Number is greater than 0.2.

參考文獻


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