内波场中水平桩柱波阻的实验研究  

An Experimental Study of Wave-Resistance of a Horizontal Cylinder in Internal Waves

作　　者：徐肇廷[1] 陈旭[1] 吕红民[1] 沈国光[2] 

机构地区：[1]中国海洋大学物理海洋研究所和物理海洋实验室,山东青岛266003 [2]天津大学建工学院,天津300072

出　　处：《中国海洋大学学报（自然科学版）》2007年第1期1-6,共6页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(40576010);物理海洋教育部重点实验室开放基金(200302)资助

摘　　要：分析水平阻力与内波波要素的关系,采用实验室实验的方法,研究了水平桩柱与内波的相互作用,焦点是研究内波波要素与波阻之间的关系。实验中的密度分层采用典型跃层型剖面,而内波是由自行研制的造波机生成。实验结果表明,当内波的频率不变时,水平桩柱所受到的阻力随着内波的振幅增加而增加,它的量值与分层有关。对于强跃层的密度分布,当桩柱处在跃层中时,受到的水平波阻较小,而在跃层之外则受到较大的水平波阻。The interaction between internal waves and a horizontal cylinder is studied by using a laboratory experiment, the focus being the dependence of the factors of the internal waves on the resistance of the horizontal cylinder induced by the internal wave. In this experiment, typical pycnocline-type profiles are employed, and the internal waves are generated by a wave maker designed by the authors. From the experimental results it can be seen that as the frequencies are kept unchanged, the horizontal resistance of the horizontal cylinder exerted by the internal waves increases with increasing amplitude of the internal waves, and its magnitude depends on the stratification. For a strong pycnocline, the horizontal resistance is small when the cylinder is in the pycnocline and it iS large when the cylinder is outside the pycnocline.

关 键 词：海洋内波 海底光缆 石油管线 桩柱 阻力 

分 类 号：P731.2[天文地球—海洋科学]