基于流动被动控制的仿生丁坝结构分析
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摘要
丁坝在传统应用中水毁严重,而水毁的主要原因是丁坝坝根处受到水力冲刷,基于流动被动控制理论,通过在丁坝坝头位置放置预制的仿生消涡装置,改变丁坝表面的结构形状,抑制边界层分离,减少坝头处产生的周期性旋涡,从而增加丁坝的使用年限,降低丁坝的维护成本;并且融合仿生学与空气动力学相关知识,为传统水利工程设施建设提供一个新的思路。
The T-dam is usually badly damaged in traditional application,which is mainly caused by the erosion at the root of the dam. Based on the theory of flow passive control,the structure shape of T-dam surface is changed by placing prefabricated bionic vortex device at dike head,therefore,the boundary layer separation is also suppressed,and the periodic vortices at dam head are reduced,so as to increase its service life with lower maintenance cost. The research combines the knowledge of bionics and aerodynamics as well as other disciplines,providing a new idea for the construction of traditional water conservancy projects.
The T-dam is usually badly damaged in traditional application,which is mainly caused by the erosion at the root of the dam. Based on the theory of flow passive control,the structure shape of T-dam surface is changed by placing prefabricated bionic vortex device at dike head,therefore,the boundary layer separation is also suppressed,and the periodic vortices at dam head are reduced,so as to increase its service life with lower maintenance cost. The research combines the knowledge of bionics and aerodynamics as well as other disciplines,providing a new idea for the construction of traditional water conservancy projects.
引文
[1]顾杰,李梦玲.丁坝对弯道水流特性影响的试验研究[J].水动力学研究与进展(A辑),2018,33(6):786-793.
[2]陈志军,蒋明.建筑风致作用力的被动流动控制研究[J].苏州科技学院学报(工程技术版),2014,27(3):34-39.
[3]李子龙.明渠流条件下丁坝水流特性研究[D].上海:上海交通大学,2015.
[4]秦鹏,舒海港,秦植海,等.一种新型的导流板式异形丁字坝结构设计[J].浙江水利水电学院学报,2016,28(5):21-23.
[5]张悦,高婉宁,程代姝.基于记忆合金的可变形涡流发生器控制唇罩激波/边界层干扰研究[J].推进技术,2018,39(12):2755-2763.
[6]勾兆莉.丁坝坝头冲刷机理探讨[C]//中国海洋学会海洋工程分会.第十四届中国海洋(岸)工程学术讨论会论文集(下册).中国海洋学会海洋工程分会:中国海洋学会海洋工程分会,2009:3.
[7]吴桢祥,吴建平.丁坝防护问题及坝头最优体型研究报告[R].郑州:郑州工学院水利系,1993.
[8]赵汝云.鱼鳞(波纹)机翼减阻试验[J].气动结构,1989(3):30-31.
[9] RASCHI W G,MUSICK J A. Hydrodynamic aspects of shark scales[C]∥Special report in Applied Marine Science and Ocean Engineering,1984,272:1-10.
[10] SPRINGER V G,GOLD J P. Sharks in question:the Smithsonian answer book[M]. Washington and London:Smithsonian Institution Press,1989.
[11]杨迎晓,陈峰.钱塘江边冲海积粉土基坑安全性数值分析[J].岩土工程学报,2014,36(S2):18-23.
[2]陈志军,蒋明.建筑风致作用力的被动流动控制研究[J].苏州科技学院学报(工程技术版),2014,27(3):34-39.
[3]李子龙.明渠流条件下丁坝水流特性研究[D].上海:上海交通大学,2015.
[4]秦鹏,舒海港,秦植海,等.一种新型的导流板式异形丁字坝结构设计[J].浙江水利水电学院学报,2016,28(5):21-23.
[5]张悦,高婉宁,程代姝.基于记忆合金的可变形涡流发生器控制唇罩激波/边界层干扰研究[J].推进技术,2018,39(12):2755-2763.
[6]勾兆莉.丁坝坝头冲刷机理探讨[C]//中国海洋学会海洋工程分会.第十四届中国海洋(岸)工程学术讨论会论文集(下册).中国海洋学会海洋工程分会:中国海洋学会海洋工程分会,2009:3.
[7]吴桢祥,吴建平.丁坝防护问题及坝头最优体型研究报告[R].郑州:郑州工学院水利系,1993.
[8]赵汝云.鱼鳞(波纹)机翼减阻试验[J].气动结构,1989(3):30-31.
[9] RASCHI W G,MUSICK J A. Hydrodynamic aspects of shark scales[C]∥Special report in Applied Marine Science and Ocean Engineering,1984,272:1-10.
[10] SPRINGER V G,GOLD J P. Sharks in question:the Smithsonian answer book[M]. Washington and London:Smithsonian Institution Press,1989.
[11]杨迎晓,陈峰.钱塘江边冲海积粉土基坑安全性数值分析[J].岩土工程学报,2014,36(S2):18-23.