@inproceedings{0d3a92db91eb4fc2a3500a6f807f0916,
title = "Numerical Simulation of Contaminant Release During Sediment Starting in Dynamic Water Environment",
abstract = "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.",
keywords = "Concentration, Particle volume fraction, Sediment contaminant, Turbulence kinetic energy, Velocity",
author = "Cheng, {Peng da} and Zhu, {Xin guang} and Chun Feng and Wang, {Xiao liang}",
note = "Publisher Copyright: {\textcopyright} 2021, Springer Nature Singapore Pte Ltd.; 16th Asian Congress of Fluid Mechanics, ACFM 2019 ; Conference date: 13-12-2019 Through 17-12-2019",
year = "2021",
doi = "10.1007/978-981-15-5183-3_14",
language = "English",
isbn = "9789811551826",
series = "Lecture Notes in Mechanical Engineering",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "129--137",
editor = "L. Venkatakrishnan and Sekhar Majumdar and Ganesh Subramanian and Bhat, {G. S.} and Ratul Dasgupta and Jaywant Arakeri",
booktitle = "Proceedings of 16th Asian Congress of Fluid Mechanics",
address = "Germany",
}