【摘要】 双向波水位演算模型将感潮河段预报断面的洪水过程视作上游洪水波和下游潮水波双向传播后的叠加。考虑了区间入流对干流水位过程的影响,提出了两种在双向波水位演算模型中考虑区间入流的方法。方法①直接将区间入流过程引入模型的基本方程中,方法②在模型上边界条件中考虑区间来水的影响。将这两种方法应用在曹娥江感潮河段,结果表明,前者在计算区间入流过程合理的情况下能得到较好的结果,后者在上游洪水和区间来水的汇流时间相差不大时也能得到较好的结果。更多还原

【Abstract】 In the bi-directional stage routing model (BSRM), flood in tidal reach is considered as the overlay of bidirectional propagation of flood and tide waves. Based on the effect of local inflow on the main channel stage, two methods were proposed to consider this effect in the BSRM in this paper. In method ① this effect is considered directly in the basic equation of the model, and in method ② this effect is added to the upstream boundary properly. The application of these two methods in the Caoejiang tidal river shows that, method ① can obtain satisfactory results when local inflow can be calculated precisely, and the performance of method ② is good when the difference between the convergence time of upstream flood and local inflow is small.更多还原