期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 30, 期 9, 页码 22520-22531出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-022-23785-0
关键词
River network; Lattice Boltzmann model; Artificial floating islands; Genetic algorithm; Hydrodynamic
This study uses the Lattice Boltzmann method to simulate the hydrodynamics and pollutant transport in a river network, and optimizes the layout of artificial floating islands. The research provides theoretical reference for the selection and location of artificial floating islands in practical engineering.
How to solve the pollution problem of water environment in river network is a hot issue in the world. Artificial floating island is an efficient way to deal with water pollution. Taking Jiashan, Zhejiang, China, as an example, Lattice Boltzmann method (LBM) is used to simulate the law of hydrodynamics and pollutant transport in river network. Lattice Boltzmann equations are established in both artificial floating island and non-artificial floating island sections, and the river network boundary is automatically identified. The simulation results have high accuracy and are more suitable for the establishment of complex boundaries. On this basis, combined with the genetic algorithm (GA) module, the location of the artificial floating island is optimized, and the retention ratio of the pollution in optimized layout of artificial floating island is between and 2.4 and 7.2%. The research results of this paper can provide theoretical reference for the selection and location of artificial floating island in practical engineering.
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