摘要
采用水深平均的ｋ－ε湍流数学模型，在三峡成库后不同时期修建和未修建防护堤的河道地形条件下，进行了中水（Ｑ长＝２８８００ｍ３／ｓ，Ｑ乌＝２０５４ｍ３／ｓ）流场的数值模拟，从流场的角度探讨了防护堤堤线优化问题。由于该河段的床面形态和平面形状均较复杂，因此这一研究的成功表明其可以方便地推广应用于其它类似的工程问题。
The depth-averaged k～ε model of turbulence is employed to simulate the flow field at the confluence of Changjiang River and Wujiang River under the different conditions after the Three Gorge Project is built.The optimization of embankment line of Fulin City protection project is investigated in regard to flow field.The studied river reach has complicated boundaries.The results show that the method used in this paper is effective and can be applied to the study of similar engineering problems.
