摘要
根据长江口北支水流、水质的特点和实际需要,建立二维非稳态水流-水质耦合模型,应用该模型模拟长江口北支的流场和浓度场,计算1000m污染带控制长度下长江北支自海门汤加镇至启东灯杆港江段的纳污能力,结果表明,该江段对COD的纳污能力为3659t/a,对NH3-N的纳污能力为265t/a。
Based on the characteristics of the water flow and water quality in the North Branch of the Yangtze Estuary, a two-dimensional unsteady hydrodynamic and water quality coupling model was established. The model was used to simulate the flow field and concentration field in the North Branch of the Yangtze Estuary, and to calculate the water environmental capacity of the river section from Tangjia Town in Haimen to Denggan Port in Qidong, in the North Branch of the Yangtze Estuary, with a pollution zone 1000 m long. The results show that the water environmental capacity in the studied section is 3 659 t per year for COD, and 265 t per year for NH3-N.
出处
《水资源保护》
CAS
2012年第3期64-67,共4页
Water Resources Protection
关键词
长江口北支
二维非稳态水流-水质耦合模型
水域
纳污能力
North Branch of Yangtze Estuary
2-D unsteady hydrodynamic and water quality coupling model
waterarea
water environmental capacity
