An experimental study of the surface drift currents in a wave flume

作者：Huang Zhenhua^*

来源：Ocean Engineering, 2007, 34(2): 343-352.

DOI：10.1016/j.oceaneng.2006.01.005

• surface waves
• mass transport
• time-mean current
• surface drift
• secondary current
• longitudinal vorticity

The Lagrangian surface drift current induced by surface gravity waves in a wave flume has been investigated experimentally by the particle tracking method. It was observed that in most regions of the flume, the time-mean surface drift current was in the opposite direction to that of the wave propagation. The secondary current in the form of a pair of longitudinal vortices caused by the lateral boundaries was analyzed. It is suggested that the convection of the vorticity generated by the wave-absorber and the lateral boundaries is an important factor in the determination of the time-mean drift in a wave flume.

• 出版日期2007-2
• 单位香港科技大学