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A platform for research: civil engineering, architecture and urbanism
Lattice Boltzmann simulation of channel flow with unsteady lateral overland inflow
This study presents a numerical model for the catchment‐stream problem based on shallow water equations with a lateral source term. A two‐dimensional (2D) lattice Boltzmann equation with an external source term is developed, in which both the mass and momentum are considered. The proposed scheme is validated by a V‐shaped catchment case against analytical solutions and other results from traditional models. The lattice Boltzmann scheme shows good stability at rather low water depths on a mild slope and provides reliable simulated results. Then, the scheme is applied to an open channel flow with a continuous pollutant source, and the impact of the additional lateral momentum on the pollutant distribution is investigated in the stable state.
Lattice Boltzmann simulation of channel flow with unsteady lateral overland inflow
This study presents a numerical model for the catchment‐stream problem based on shallow water equations with a lateral source term. A two‐dimensional (2D) lattice Boltzmann equation with an external source term is developed, in which both the mass and momentum are considered. The proposed scheme is validated by a V‐shaped catchment case against analytical solutions and other results from traditional models. The lattice Boltzmann scheme shows good stability at rather low water depths on a mild slope and provides reliable simulated results. Then, the scheme is applied to an open channel flow with a continuous pollutant source, and the impact of the additional lateral momentum on the pollutant distribution is investigated in the stable state.
Lattice Boltzmann simulation of channel flow with unsteady lateral overland inflow
Ding, Yu (author) / Liu, Haifei (author)
River Research and Applications ; 38 ; 917-925
2022-06-01
9 pages
Article (Journal)
Electronic Resource
English
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