旋涡与行进表面水波相互作用的实验研究  

Experimental Study of Interaction of Vortices with a Progressive Surface Wave

作　　者：麻柏坤[1] 张人杰[1] 马晖扬[1] 王琳琳 

机构地区：[1]中国科学技术大学研究生院

出　　处：《实验力学》1997年第2期285-290,共6页Journal of Experimental Mechanics

基　　金：国家自然科学基金

摘　　要：采用振动板式造波器在二维水槽中生成近似单色的行进表面水波，采用夹板式涡发生器生成稳定上浮的涡对，在Ｆｒｏｕｄｅ数约为０．５的条件下，得到了水下涡对与不同波长和振幅的行进表面水波相互作用时的干扰图象，以实验方法验证了理论分析和数值计算的结果。The approximate monochromatic progressive surface wave is generated by a piston wave maker, the vortex pair which ascends steadily is generated by a splint vortex maker in a two dimensional cistern. On the condition of Froude number being 0.5 approximately, we obtain the deformation of wave patterns produced by interaction of the vortex pair with the progressive surface waves which have different wave length and amplitute; our experimental results confirm the related theoretical research and numberical simulations. The present study provides an experimental method for the further analysis of interaction between a pair of counter rotating vortices and a progressive surface wave.

关 键 词：水下涡对 行进表面水波 涡波作用 

分 类 号：O353.5[理学—流体力学] O353.2[理学—力学]