【摘要】 在资料稀缺、时间紧急的情况下,设计出快速相应的洪水演进递推模型。该模型以水量平衡、水力学公式为基础,在溃坝过程中通过递推方法得出不同时刻坝口变化的过程。同时采用以立波方式传播的洪水波对洪水演进过程进行研究,从而实现对溃坝洪水过程的模拟。最后利用唐家山堰塞湖2008年6月10日的观测数据,使用Matlab软件编程进行了演算,验证了模型的准确性、合理性。更多还原

【Abstract】 The rapid evolution of the corresponding recursive model of the flood has been designed in the data scarcity and time-urgent cases.The model is based on water balance,and water-based mechanical formula.In the process of dam-break,the variation of crevasse with time has been carried out by the recursive method.At the same time,the evolution of the flood is studied by use of standing wave transmission models.Thus,the process of dam-break flood is simulated.The accuracy and reasonableness of the model is verified in Matlab by using the data of Tangjiashan quake lake observed on June 10th,2008.更多还原