多座水库同时溃决的通用性数学模型研究

Study on universal numerical model for calculating flood flow due to multiple dam-breaks

针对多座水库同时发生溃坝的情况,在已有可以模拟单座水库溃决数学模型的基础上,通过建立各座水库之间,水库与各自溃口之间以及溃口与计算通道之间合理的拓扑关系,将原有数学模型改进为可以模拟多座水库同时发生溃决的情况,并且对于不同的多库溃决算例,均不需要对程序体进行修改,使得溃坝水流数学模型具备了通用性。最后,以漳河水库为例证明了改进后模型的实用性。

To simulate multiple dam-breaks flood a new improved numerical model was developed based on the existed model which can only simulate the single dam-break flood.The reasonable topological relations among reservoirs,dam breaches and calculated channels were established in the new improved model.Moreover,the new model possess good universality and need not to be repaired when use it to deal with different multiple dam-breaks numerical examples.Finally,the practicability of the new model was tested using the Zhanghe Reservoir as an example.