| 叶梢带端板螺旋桨的性能研究 |
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| 引用本文： | 崔承根,施能继.叶梢带端板螺旋桨的性能研究[J].华中科技大学学报(自然科学版),1991(3). |
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| 作者姓名： | 崔承根 施能继 |
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| 作者单位： | 华中理工大学船舶和海洋工程系
(崔承根)，华中理工大学船舶和海洋工程系(施能继) |
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| 摘 要： | 1 概述 若使螺旋桨叶片的梢部保持一定的弦长,并装有一小块弧形端板,则能阻止叶端的横向绕流,维持较大的环流强度,从而增加叶片推力。此外还能消除梢涡,降低噪声。80年代初,叶梢带端板的螺旋桨用于实船试航,获得以14％～15％的节能效益,从而引起人们的关注,并对这种推进器开展了广泛的研究和讨论。 作者1985年以来也对叶梢带端板螺旋桨进行了研究。以一艘单桨船舶的常规螺旋桨模型为对比基础,保持其叶面积不变,使桨叶修改成具有宽叶梢的外形。同时先后安装五种方案的叶梢端板,进行了理论计算和模型敞水试验。桨模的叶数为4;直径144.4mm;
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An Investigation on the Performance of a Screw with Endplates at Blade Tips |
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| Cui Chenggen,Ski Nengji.An Investigation on the Performance of a Screw with Endplates at Blade Tips[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1991(3). |
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| Authors: | Cui Chenggen Ski Nengji |
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| Institution: | Cui Chenggen Ski Nengji |
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| Abstract: | The results of both the hydrodynamic calculations and model tests for a screw with endplates at blade tips are presented. Compared with the conventional screw, the novel screw developed has a larger thrust and higher open-water efficiency when operated under identical ship design conditions. In addition, smaller screw diameter is needed. Energy-saving test results of two full-scale ships mounted with screws with endplates at blade tips and with other modifications are analyzed. Some design problems of this type of screw are discussed. |
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| Keywords: | Ship propeller Screw with endplates at blade tips Tip-vortex- free screw propeller Energy-saving Lifting line theory |
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