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个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:水利工程系
学科:港口、海岸及近海工程. 船舶与海洋结构物设计制造
办公地点:大连理工大学 海岸和近海工程国家重点实验室 海洋工程研究所A区402室
联系方式:ypzhao@dlut.edu.cn
电子邮箱:ypzhao@dlut.edu.cn
Experimental analysis of the hydrodynamic coefficients of net panels in current
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论文类型:期刊论文
发表时间:2018-10-01
发表刊物:APPLIED OCEAN RESEARCH
收录刊物:SCIE
卷号:79
页面范围:253-261
ISSN号:0141-1187
关键字:Current force; Net panel; Drag coefficient; Bio-fouled net
摘要:The hydrodynamic loads on net panels were affected significantly by the net configuration and the Reynolds number. Six groups of net panels with different materials, net solidities and knot patterns were experimentally analyzed in this study. The concept of the cruciform element was proposed to calculate the hydrodynamic loads on net panels. The effect of the net solidity, the net material, the knot pattern and the Reynolds number on the hydrodynamic coefficients of net panels in current was comprehensively discussed. A formula, which was suitable for the net panels with high solidity, was proposed to estimate the hydrodynamic coefficients of net panels in current based on the theoretical and experimental analysis of the measurements. The results indicated that the relationship between the Reynolds number and the drag coefficient of the net panel was similar to that for the circular cylinder when the net solidity was low (0.190); with the increase of the net solidity, the influence of the Reynolds number on the drag coefficient of the net panel decreased. In addition, the net-grouping standard was discussed and a correction factor for modifying the drag-coefficient of the equivalent net model was proposed.