基于Mike模型的月亮泡蓄滞洪区洪水演算模拟

摘要

本文以月亮泡蓄滞洪区为研究对象, 采用一维、 二维水力学模型耦合演算方式模拟洪水演进情况. 由于洪水演进过程分为河道和蓄滞洪区两部分, 计算过程非常复杂, 为了提高计算效率并且保证计算结果的准确性, 采用DHI 公司开发的MIKE软件进行模型演算. 利用2013年实测资料对模型参数进行率定后, 最大水位误差绝对值≤0.2m, 最大流量相对误差≤10%, 说明模型具有较高的精度, 研究成果可为月亮泡蓄滞洪区防洪减灾提供技术支撑.%In this paper,A 1D-2D coupled hydrodynamic model was adopted to simulate flood routing.Due to the flood routing process is divided into the river and detention basin ,the process of calculation is very com-plex.In order to improve the calculation efficiency and guarantee the accuracy of the results ,Mike model de-veloped by DHI company is used to calculation.The measured flood data in 2013 were used to calibrate the model,the maximum water level of error absolute value is less than or equal to 0.2m and the maximum relative error of simulated and measured flow was about 10%,which indicated that the model has a high simulation precision.The research results can provide technical support for the flood control and disaster reduction of Yueliangppao Detention Basin.