建立三门湾附近海域的水动力和水质模型, 研究核电站取排水工程对海湾水交换的影响.计算得到取排水工程建立后三门湾海域40d的海水交换率由51.60％变为51.06％, 降低了0.54％.将三门湾海域分区分析, 结果发现靠近排水工程的汊道水交换率降低最多, 降低了5.36％, 其余区域水交换率也都有所降低, 但是降低幅度不大.结果表明:取排水工程的建立使得湾内水流状况发生变化, 不同区域的水交换率变化相差较大;排水工程切断了附近汊道水流与外海的交换, 导致排水口附近海域水交换率降低最多.%The hydrodynamic model and the water quality model of the sea near Sanmen Bay was established to study the effects of the huge water intake and drainage project on water exchange capability of the bay.According to the simulation results, the seawater exchange rate of 40 days in the Sanmen Bay changing from51.60％ to 51.06％ after the water intake and drainage project was calculated, it was decreased by 0.54％.According to the sub-regional analysis of Sanmen Bay, the water exchange rate of the waterway near the drainage project decreased the most and it was decreased by 5.36％.The results show that the establishment of water intake and drainage project changes the water flow in the bay, and the water exchange rate varies greatly in different areas.Drainage works cut off the exchange of water from the nearby inlet and the sea, making the water exchange rate here decrease the most.
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