摘要
根据南昌市青山湖浅水湖泊紊流扰动特性,建立相应的沿水深方向平均的二维平面水流—水质模型.模型在有限体积法框架下应用Osher黎曼近似解进行平面二维水流—水质模拟,理想资料检验表明,模型性能优良.模拟不同调水方案对青山湖水质的改善状况,为城市浅水湖泊水流—水质模拟提供可操作的新途径.
A pollution governing equation was established based on the characteristics of the turbulent diffusion in Qingshan Lake in Nanehang City. Coupled with the shallow water equations, a depth-averaged 2D flow and water quality model was developed. In the framework of finite volume method, the Osher approximate Riemann solver was employed to solve the equations. An analytical resolution was employed to examine the model capabilities. Simulation results match the exact solutions very well. The simulation of CODM, in the Qingshan Lake was conducted as a case study, which provides a new approach and a practical tool for the simulation of flow and water quality in shallow lakes.
出处
《南昌工程学院学报》
CAS
2008年第6期51-54,71,共5页
Journal of Nanchang Institute of Technology
基金
南昌工程学院青年科学基金(2006KJ003)
关键词
水流-水质模型
有限体积法
黎曼近似解
浅水方程
青山湖
flow and water quality model
finite volume method
approximate Riemann solver
shallow water equation
Qingshan Lake
