川江匹配桨试验研究

Experimental research of the matching oar for a pusher in Szechwan river

在川江 194 1kW推船船队机桨不匹配的情况下 ,采用 90 %的常用负荷和船队伴流分数 ,根据荷兰瓦格宁根船模试验水池BB型螺旋桨设计图谱确定螺旋桨的最佳直径螺距比及螺旋桨效率 ,尝试B型桨和MAU型桨剖面进行组合的组合桨型 ,使新设计桨与原船队有较佳的匹配性能 。

The propeller was mismatched with the machine for the original 1 941 kW pusher i n Szechwan river. According to 90% common loads and wake fraction, as well as th e propeller design charts of BB type obtained by Wageningen Testing Tank, the au thor redesigns the propeller diameter, pitch ratio and propeller efficiency, emp loying the combined blade form from sections of type B and type MAU. The new de signed propeller has good matching performance with the original fleet.