Study on flood zoom model based on genetic algorithm and parallel recombination simulated annealing algorithm

Aiming at the flood zoom demand of flood discharging risk, construction diversion risk and the deficiency of the traditional same-frequency flood amplification method, a new optimal amplification method for the flood process realized by the computer is presented in this paper. The objective of the optimal model is to keep the flood process mode similar and subject to restrictions of the actual peak flow discharge and flood volume in different period of time, the GA and PRSAA that have global optimal capabilities are used to solve the model in this paper. From the case study, it can be seen that the results of two algorithms can satisfy the restrictions of the actual peak flood discharge and flood volume and keep the mode of the typical flood effectively and avoid the manual randomicity.