超浅吃水肥大船舶首部线型优化  

Optimization on the Bow of Super-Shallow Draught Ships

作　　者：冯大奎[1] 叶恒奎[1] 杨向晖[1] 张志国[1] 陶先世[1] 

机构地区：[1]华中科技大学交通科学与工程学院,湖北武汉430074

出　　处：《中国造船》2009年第3期180-185,共6页Shipbuilding of China

基　　金："十一五"国家高技术研究发展计划(863计划)(2006AA052301)资助

摘　　要：通过模型试验研究球鼻形状对内河超浅吃水肥大船舶阻力性能的影响,试验结果表明球鼻形状的改变可以对阻力产生约3%的影响。采用k-ε湍流模型计算模拟了船舶首部流场,流场变化充分反映了首部线型的变化,计算结果与试验结果是一致的,说明计算是可靠可信的。The influence of the form of bulbous bow on the resistance performance of super-shallow draught ship is investingated using model test method in this paper. With the four test models decribed in this paper, it is seen from the model test results that the change of bulbous bow would produce three percent influence on the total resistance coefficient. At the sametime, the bow flow fields of the two test models among the foregoing four test model are caclulated by k - ε turbulence model. The change of the flow fields obtained by k -ε turbulence model reflects the change of the two test model＇s bow form. Calaulation results are good agreement with test results. Therefore, it is coucluded that the calculation presented in this paper is reliable and credible.

关 键 词：船舶、舰船工程 超浅吃水肥大船 球首 模型试验 k-ε湍流模型 

分 类 号：U661.312[交通运输工程—船舶及航道工程]