A Simple Eddy Viscosity Model of Rough Turbulent Wave Boundary Layer

作     者：Hsu Tai-Wen and Lin Hwung-Yui Associate Professor, Department of Hydraulics and Ocean Engineering, National Cheng Kung University, Tainan Graduate student, Department of Hydraulics and Ocean Engineering, National Cheng Kung University, Tainan 

作者机构：Dept. of Hydr. and Ocean Engineering National Cheng Kung University Tainan Taiwan 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：1996年第11卷第3期

页      面：281-294页

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

主　　题：turbulent wave boundary layer eddy viscosity wave fiction factor 

摘      要：A one-layer time-invariant eddy viscosity model is specified to develop a mathematical model for describing the essential features of the turbulent wave boundary layer over a rough bed. The functional form of the eddy viscosity is evaluated based on computational results from a two-equation turbulence model in which the eddy viscosity varies with time and space. The present eddy viscosity model simplifies much of the mathematical complexity in many existing models. Predictions from the present model have been compared with a wide range of experimental data. It is found that the eddy viscosity model adopted in the present study is physically reasonable.