Three-dimensional water-quality simulation for river based on VOF method

详细信息    查看全文

• 作者：Xuefei Ao 敖雪菲 ; Xiaoling Wang 王晓玲 ; Mingrui Song 宋明瑞…
• 关键词：three ; dimensional water quality model ; volume of fluid method ; k ; ε turbulence mathematical model ; river water quality ; computational fluid dynamics
• 刊名：Transactions of Tianjin University
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：22
• 期：5
• 页码：426-433
• 全文大小：939 KB
• 刊物类别：Engineering
• 刊物主题：Chinese Library of Science
  
• 出版者：Tianjin University
• ISSN：1995-8196
• 卷排序：22

文摘

In the present study, considering the transport and transformation processes of variables, a three-dimensional water quality model for the river system was established, which coupled the volume of fluid (VOF) method with the k-ε turbulence mathematical model. Then, the water hydrodynamic characteristics and transport processes for BOD₅, NH₃-N and TP were analyzed. The results showed that the water surface of convex bank was a little lower than that of concave bank due to the centrifugal force near the bend, and most concentrations were inferior to the type V standard indexes of surface water environmental quality. The model validation indicated that the errors between the simulated and monitored values were comparatively small, satisfying the application demands and providing scientific basis and decision support for the restoration and protection of water quality.