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在河网地区,为控制河道水体循环、改善河流水环境质量,需要越来越多的利用水闸联合调控技术。但利用数学模型精确模拟水闸控制对水动力过程影响的技术尚不成熟。利用面向对象思想和三级联解法并结合MPI和OpenMP并行编程技术,开发了潮汐河网水动力模型TRNM(Tidal River Network Model)。将该模型用于珠江三角洲市桥河网,利用实测水文资料对模型进行率定后,模拟了市桥河上雁洲水闸建闸前后不同调度方案对市桥河水动力过程的影响。模拟结果与实测结果吻合良好,并行算法大大提高了模型的计算速度。
In the river network area, in order to control the river water circulation and improve the river water environment quality, more and more use of sluice joint regulation technology is needed. However, the use of mathematical models to accurately simulate the impact of sluice control on the hydrodynamic process technology is not yet mature. Tidal River Network Model (TRNM) was developed by using object-oriented thinking and triplex method combined with MPI and OpenMP parallel programming. The model was applied to the bridge network of Pearl River Delta, and the model was calibrated by the measured hydrological data to simulate the influence of different scheduling schemes on the hydrodynamic process of Shiqiao River before and after the construction of the Yanqiao Island sluice on Shiqiao River. The simulation results are in good agreement with the measured results. The parallel algorithm greatly improves the computational speed of the model.