为了研究大型集装箱船不同装载形式下上层建筑的阻力特性,以14000箱集装箱船为对象进行空载吃水和设计吃水2种工况的风洞试验,得到其在水面以上建筑物的横向阻力系数、纵向风阻系数和力矩系数。试验结果表明:随着风向角的不断增大,2种工况的纵向风阻力系数都呈现正弦曲线的变化规律,同时存在2个方向相反的阻力峰;横向风阻力系数则呈抛物线变化规律,并且在受到正横风时设计吃水的风阻系数较大,同时其力矩系数也明显较大,由于集装箱船结构重心处于舯后位置,偏航力矩并不完全遵循正弦曲线变化规律。
In order to study the characteristics of the wind resistance coefficient of superstructure building with various load states, wind tunnel test based on the14000container ship was carried out on the state of the no-load and the design draft, as well the wind resistance coefficient was obtained. The tunnel test indicates: as increasing wind angle, in both no-load and the design draft state, longitudinal wind resistance coefficient shows sine curve law and exists opposite resistance peaks; while the transverse wind resistance coefficient curve presents parabolic law and reaches curve peak when ship exposed in cross wind. Since the gravity center at aft midship position of container ship, yaw moment does not follow the sine curve law.
2020,42(10): 62-64 收稿日期:2019-11-20
DOI:10.3404/j.issn.1672-7649.2020.10.013
分类号:U661.31
基金项目:高技术船舶科研项目(工信部联装(2016)25号);国家自然科学基金资助项目(51509055);中央高校基本科研业务费资助项目(HEUCF180101)
作者简介:孙志远(1991-),男,博士,研究方向为高性能船舶技术。
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