波浪与透空管防波堤的相互作用  

Wave interaction with a perforated-pipe breakwater

作　　者：朱大同[1,2] 傅朝方[3] 

机构地区：[1]东南大学东南交通监理咨询公司,南京210018 [2]南京水利科学研究院河流与海岸所,南京210024 [3]东南大学华宁交通监理咨询公司,南京210018

出　　处：《水动力学研究与进展（A辑）》2010年第5期587-593,共7页Chinese Journal of Hydrodynamics

摘　　要：用阻抗分析方法,对由透空管组成的防波堤的波浪反射与传递系数等水动力学特征进行研究。在对透空管线性和非线性消耗波能机理分析基础上,导出一组所有参数都是事先知道的、完全封闭的理论公式。计算结果与试验吻合很好。在此基础上分析了透空管防波堤的波浪反射系数、传递系数和能量耗散系数随相对管长、开孔率、周期和波陡的变化。An impedance analysis method is developed to study the reflection and transmission of the perforated-pipe breakwater. Based on the analysis of the wave impedance and flow resistance, the analytical formulas of reflected and transmitted wave heights are obtained. In the formulas, all of the parameter can be either obtained from the textbook and manual, or calculated by structural and hydrologic parameters. The theoretically predicted reflection coefficients are compared with the test data, and it is found that the results from this theory are in agreement with experimental data. The dependence of the reflection, transmission and energy loss coeffieientg on the relative length of the piPe, porosity, wave period and wave steepness have been analyzed in this paper.

关 键 词：水波 透空管 反射系数 传递系数 阻抗分析法 

分 类 号：P752.1[天文地球—海洋科学]