Numerical simulation of pollution process due to resuspension of bed materials adsorbing pollutants in alluvial rivers
Numerical simulation of pollution process due to resuspension of bed materials adsorbing pollutants in alluvial rivers
复制标题
冲积河流吸附污染物床质再悬浮污染过程的数值模拟
DOI：
10.1007/s11431-015-5845-9
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发表时间：
2015-06
影响因子：
4.6
通讯作者：
Zhong DeYu
中科院分区：
文献类型：
--
作者：
Ding Yun;Xiao Yang;Zhong DeYu
吸收污染物的床物质的再悬浮可能给冲积河流的水管理带来不可预测的挑战，其传输机制尚未得到广泛认可。在本研究中，基于质量守恒定律和连续介质理论，建立了定义活性床层床材料上吸附的污染物运动的输运方程。将传输方程耦合到一维数学模型中，以数值研究由于床底沉积物吸附污染物的冲刷而造成的水污染过程。与不考虑活动床层动力学情况的比较表明，床层的周期性演化在泥沙再悬浮污染过程中起着不可忽视的作用。此外，还将结果与现有的实验观察结果进行了比较，并获得了相当好的一致性。
Resuspension of bed materials absorbing pollutants potentially poses unpredictable challenges to water management in alluvial rivers and its mechanism of transport has not been widely recognized. In this study, a transport equation that defines the movement of pollutants adsorbed on the bed materials in the active bed layer is established, on the basis of mass conservation law and continuum theory. The transport equation is coupled into the 1-D mathematical model to numerically investigate water pollution process due to the scour of the bed sediment adsorbing pollutants. Comparisons with the situation in which the dynamics of the active bed layer is not considered indicate that the periodical evolution of the bed layer plays an innegligible role in the pollution process due to sediment re-suspension. Furthermore, comparisons of the results with available experimental observations are presented, and fairly good agreement is obtained.
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影响因子：
2.6
作者：
J. G. C. Smits;D. van der Molen
通讯作者：
J. G. C. Smits;D. van der Molen
影响因子：
2.4
作者：
G. Parker;P. Klingeman;D. G. McLean
通讯作者：
G. Parker;P. Klingeman;D. G. McLean
影响因子：
3.7
作者：
H. Branover
通讯作者：
H. Branover
影响因子：
2.2
作者：
D. J. O'connor
通讯作者：
D. J. O'connor
DOI：
10.1007/s11431-014-5606-1
发表时间：
2014-08
期刊：
Science China Technological Sciences
影响因子：
--
作者：
C. Ji;M. Ante;Avital Eldad;Dong Xu;W. John
通讯作者：
C. Ji;M. Ante;Avital Eldad;Dong Xu;W. John