行进波在两层流体中引起的泥层质量输运  

Mass Transport in the Mud Layer due to Progressive Waves in a rwo-layer Fluid System

作　　者：周显初[1] 

机构地区：[1]中国科学院力学研究所

出　　处：《水动力学研究与进展（A辑）》1996年第4期410-418,共9页Chinese Journal of Hydrodynamics

基　　金：国家基金;连云港建港指挥部资助

摘　　要：本文考虑了两层不可压流体系统中的质量输运问题，上层为理想流体，下层为粘性流体，导出了它们的色散关系，可以计算波浪在淤泥床上的衰减。导出了下层粘性流体中的质量输运速度、尤拉平均速度和司托克司漂流速度，都用显式表示。理论模型与实验结果进行了比较，两者基本相符。最后对某些质量输运规律进行了讨论。Mass transport in a two-layer incompressible fluid system was considered in this paper. The fluid in the top layer is ideal and that in the lower layer is viscous. A dispersion relation, which can be used to calculate the wave attenuation on a mud bed, was derived. The mass transport velocity of the viscous fluid in the lower layer was determined too; The average Eulerian velocity and Stokes'drift velocity were expressed explicitly.The results of the theoretical model was compared with the experiments and they were almost consistent. At last some regularities for the mass transport was discussed.

关 键 词：淤泥输运 波浪衰减 两层流体 

分 类 号：TV142[水利工程—水力学及河流动力学]