Numerical Simulation of Contaminant Release During Sediment Starting in Dynamic Water Environment
文献类型：会议论文
| 作者 | Cheng PD(程鹏达); Zhu XG(朱心广) ; Feng C(冯春); Wang XL(王晓亮)
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| 出版日期 | 2021 |
| 会议日期 | 13 December 2019 到 17 December 2019 |
| 会议地点 | Bengaluru |
| 关键词 | Concentration Particle volume fraction Sediment contaminant Turbulence kinetic energy Velocity |
| 英文摘要 | In environmental hydrodynamics, the release of contaminant from sediments is one of the main problems. Based on a large number of experimental data provided by water channel experiments, a coupled mechanical model of overlying water, sediment and contaminant is established in this paper. The process of sediment starting and contaminant release is numerically simulated under different velocity conditions of overlying water. The quantitative relationships among velocity, particle volume fraction, contaminant concentration, turbulent kinetic energy and time are obtained by analyzing the relationship between flow field characteristics and contaminant concentration distribution. The results show that contaminant is released rapidly with the suspension of sediment particles and quickly reaches equilibrium concentrations. When the flow field characteristics (Re) change, the contribution of convection and turbulent diffusion to contaminant release process is different. Establishing a quantitative relationship between hydrodynamic conditions and contaminant release can provide support for constructing water pollution model in lake and reservoir areas. © 2021, Springer Nature Singapore Pte Ltd. |
| 会议录 | Lecture Notes in Mechanical Engineering
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| 语种 | 英语 |
| URL标识 | 查看原文 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/87803]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Beijing Institute of Technology, Beijing, 100081, China 2.School of Engineering Science, University of Chinese Academy of Sciences, Beijing, 100049, China 3.Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China |
| 推荐引用方式 GB/T 7714 | Cheng PD,Zhu XG,Feng C,et al. Numerical Simulation of Contaminant Release During Sediment Starting in Dynamic Water Environment[C]. 见:. Bengaluru. 13 December 2019 到 17 December 2019. |
入库方式： OAI收割
来源：力学研究所
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