ANALYSIS OF TURBULENCE AND SEDIMENT TRANSPORT IN THE LARGE-SCALE SHALLOW WATERS BASED ON THE DEVELOPMENT OF NEW QUASI 3-D MODELS

摘要

In this study, we have developed a new quasi-3-D turbulence and sediment transport model for shallow water turbulent flows and associated sediment transport in non-equilibrium conditions. These models have been successfully applied to calculating HLS (horizontal large-scale) eddies at a harbor entrance developed by long-period waves and sediment suspension and subsequent transport into the harbor by the HLS eddies. The comparison with the results by a previous horizontal 2-D model clearly demonstrates the importance of the 3-D computation for proper evaluation of the sediment suspension at a harbor entrance and subsequent transport into the harbor by HLS eddies.