SENSITIVITY STUDY OF THE EFFECTS OF WAVE-INDUCED VERTICAL MIXING ON VERTICAL EXCHANGE PROCESSES  

作　　者：LIANG Bing-chen LEE Dong-yong LI Hua-jun ZHANG Jing 

机构地区：[1]Key Laboratory of Ocean Engineering, Shandong Province, Ocean University of China, Qingdao 266100, China, [2]Coastal and Harbour Engineering Research Center, Korea Ocean Research and Development Institute, Ansan,Korea [3]College of Engineering, Ocean University of China, Qingdao 266100, China

出　　处：《Journal of Hydrodynamics》2010年第3期410-418,共9页水动力学研究与进展B辑（英文版）

基　　金：supported by the Natural National Science Foundation of China(Grant No.50809065);the National Science Foundation of Shangdong Province(Grant No. Q2007E05);supported by the Project from Korea Ocean Research and Development Institute "Study on wave-curre interaction and development of local wave and wave Setup prediction model"

摘　　要：The hydrodynamic model COHERENS-SED, developed by the present authors through introducing wave-enhanced bottom stress, wave dependent surface drag coefficient, wave-induced surface mixing, SWAN to COHERENS, is modified to account for wave-induced vertical mixing. The COHERENS-SED model can also be used for one-dimensional, two-dimensional, three-dimensional current and salinity calculations. One-dimensional model and three-dimensional model are used to study the effects of the wave-induced vertical mixing. The horizontal current velocity profiles obtained by the model are in good agreement with the analytical velocity profiles under the same input conditions. Numerical results show that higher wave height would generally generate larger vertical eddy viscosity and lower horizontal velocity. The results for fresh water in Yellow River Delta show that the wave-induced vertical mixing increases the momentum of fresh water transferring ability downwards to seabed and salt water＇s mixing with upper fresh water. Fresh water flume length is compressed considerably.The hydrodynamic model COHERENS-SED, developed by the present authors through introducing wave-enhanced bottom stress, wave dependent surface drag coefficient, wave-induced surface mixing, SWAN to COHERENS, is modified to account for wave-induced vertical mixing. The COHERENS-SED model can also be used for one-dimensional, two-dimensional, three-dimensional current and salinity calculations. One-dimensional model and three-dimensional model are used to study the effects of the wave-induced vertical mixing. The horizontal current velocity profiles obtained by the model are in good agreement with the analytical velocity profiles under the same input conditions. Numerical results show that higher wave height would generally generate larger vertical eddy viscosity and lower horizontal velocity. The results for fresh water in Yellow River Delta show that the wave-induced vertical mixing increases the momentum of fresh water transferring ability downwards to seabed and salt water＇s mixing with upper fresh water. Fresh water flume length is compressed considerably.

关 键 词：Yellow River Delta COHERENS SWAN COHERENS-SED wave-induced vertical mixing 

分 类 号：TQ027.1[化学工程] P737.1[天文地球—海洋地质]