波浪及水流共同作用下的泥沙运动

本文首先简单讨论了波浪及水流共同作用下床面剪应力的表达形式;然后对波浪及水流共同作用下泥沙运动的各种理论和研究现状作了评述;指出了根据河流输沙理论用剪应力替换方法推导波浪、水流共同作用时输沙公式的困难:当水流作用占主导地位时,结果是合理的,但当波浪的作用与水流的作用相当或波浪作用为主时,其结果是不可靠的.文中同时简单介绍了理论与现场和实验室观测资料的验证情况,提出了有待进一步研究的课题.

Sediment Movement under Combined Action of Waves and Currents

This paper discusses the bed shear-stress due to waves and currents, then presents a brief review of a number of theories of sediment transport under the combined action of waves and currents. A major weakness in current theories for sediment transport under waves and currents appears to lie the definition of the bed shear-stress. When the effect of currents dominates over that of waves, the results are acceptable. But the results from the various theories are unreliable when the effect of waves is dominant. Finally, some further studies on this subject are recommended in the paper.