17世紀“臺灣船”性能研究與初步復原規劃設計

Basic Performance Analysis and Preliminary Design for Reproduction of a Typical 17(superscript th) Century Taiwanese Junk

我們針對明末清初時期由台灣到日本長崎進行貿易的「臺灣船」進行考證、外型復原及基本性能分析，分析項目包括靜水性能、阻力預估及橫搖安全性，並與其他典型中式帆船比較。本研究發現，此一依照詳細描繪與典型復原古帆船特徵所復原設計出來的船型，有一定的耐海性，但不如一般的典型福船，而其阻力性能與一般帆船相似。此外，本研究也首次以電腦模擬中式帆船的流場，發現船艏必須承受較大的壓力，因此其結構必須比較堅固。 A typical 17(superscript th) century Taiwanese junk sailing between Taiwan and Japan is studied by modern naval architecture methodology and tools based on a recreation study. We analyze hydrostatic performance, resistance, and safety based on nonlinear rolling simulation. Her performance is compares with other typical types of Chinese junks. It is found that she has certain seaworthiness, but worse than typical Fu-Chuan. It is also the first time to use computational fluid dynamics simulation to analyze the flow field and waves made. The results show that its bow must be stiff to resist relative high pressure.