【摘要】 为了节能的需要,在现代船舶上采用风帆推进装置的方案又被重新提出。在国外,已成功地发展了机主帆副的船舶(或称风帆助航节能船舶)。据统计,由于利用风帆而得到的节能效果约15％左右,每平方米帆面积平均获得的功率约0.3～0.4马力,我国也已开展这方面的研究工作,并准备用之于实船。 本文结合有关任务,对圆弧型风帆的流体动力性能进行了试验研究,探讨风帆的形式及参数等对空气动力性能的影响。文中给出的资料可供设计风帆时计算推力、横向力及编制风帆自动控制程序之用。更多还原

【Abstract】 For the purpose of saving energy, sails used as wind propulsive device for modern ships are reintroduced. Sail-assisted motorships, in which engine is the main propulsion system which the sails provide auxiliary propulsion, have been successfully developed abroad. According to statistical information, 15% energy saving can be obtained due to the use of sails, or calculated in another way, an average power gain of 0.3-0.4 HP can" be resulted from per m2 sail area. In China, research work in this field has as well begun and results are being applied to actual ships.This present paper deals with the experimental study on aerody-namic performsnce of circular-arc sails. Based on test results, influence of sail form and geometrical parameters on aerodynamic performance is discussed. Available data and diagrams given in this paper will facilitate calculation of thrust lateral force, turning moment and help programing for automatic control of sails so as to optimally utilize wind energy.更多还原