摘要
本文建立了一个适合于自然河流中污染物排放的远区计算模型。该模型的计算特点是将流场和浓度场分开计算 ,即所谓“非偶合解”,运用 SIMPLEC方法计算了流场 ,用改进的QUAL—IIm和 QUAL2 D方法计算了浓度场。该模型应用于长江汉江仙桃段 ,其计算出的流场和COD浓度场与实测值基本一致。
A far field numerical model is developed to simulate jet pollution into natural rivers. The model calculates the velocity and pollution concentration separately. The present model is also called ‘no pairing resolution’. The velocity is calculated by SIMPLEC algorithm in boundary fitted coordinate systems. The pollution concentration distribution is calculated by improved QUAL Ⅱm and QUAL2D programs. The present model was applied to Xiantao section of Hanjiang river, a tributary of Yangtze river. The flow field and COD Mn (chemical oxygen demand) distribution are in good agreement with field data.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2000年第1期104-115,共12页
Chinese Journal of Hydrodynamics
基金
教育部留学回国人员科研启动基金资助项目
关键词
数学模型
浓度场
天然河流
污染物排放
pollution
flow field calculation
numerical model
concentration field
depth averaged COD.
