摘要
本文采用一维非恒定流非均匀沙的水沙数学模型 ,以长江中游螺山汉口河段为背景 ,进行了概化数值模拟试验 ,分析了该概化河段平衡纵剖面的变化规律及其与上游来水来沙条件的关系 ,并和相应的理论公式进行了比较。在此基础上 。
Based on the morphology of the Luosan Hankou reach at the middle Yangtze River, a numerical model of the one dimensional unsteady flow and sediment was adopted to study the generalized longitudinal equilibrium profile of river channels. Meanwhile, the changing law of the longitudinal equilibrium profile, and the relation with the condition of the inflow water and sediment from the upper reach were analyzed, and on the other hand, the numerical simulation results were compared with the corresponding theoretical results. Finally, the equilibrium longitudinal slope variations and effect on flood control were analyzed after the variation of sediment transport process.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2002年第3期304-310,共7页
Chinese Journal of Hydrodynamics
基金
国家自然基金委和水利部联合资助重大项目 (5 9890 2 0 0 )
