Open AccessNumerical simulation of three-dimensional hydrodynamic characteristics and pollutant diffusion behavior by ROMS model
Author(s) -
Jing Ren,
Chazhong Ge,
Chunxu Hao,
Rui Hu,
Kefu Cui,
Peng Chen,
Quan Zhou,
Aiyu Yu,
He Xu,
Shiqing Liu,
Feng Li
Publication year - 2020
Publication title -
water science and technology water supply
Language(s) - English
Resource type - Journals
eISSN - 1607-0798
pISSN - 1606-9749
DOI - 10.2166/ws.2020.380
Subject(s) - bay , outfall , submarine pipeline , current (fluid) , environmental science , pollutant , hydrology (agriculture) , diffusion , flow (mathematics) , marine engineering , oceanography , environmental engineering , geology , engineering , geotechnical engineering , mechanics , chemistry , physics , organic chemistry , thermodynamics
Based on the ROMS (Regional Ocean Modeling System) model, a three-dimensional hydrodynamic model and a convection diffusion model are built in this paper. The three-dimensional tidal current model is intended to reflect the distribution characteristics of the tidal level and the flow field of water with different depths of the Bohai Bay. On this basis, a water exchange correlation matrix is adopted to analyze the water exchange characteristics of the offshore area of Binzhou City in the offshore planning functional area of Bohai Bay. Considering the functional planning of the offshore area of Binzhou city, the paper simulates how COD and NH4+-N in the water discharged from the sewage outfall of the city migrate and disperse under tidal current. In this way, the paper concludes the concentration distribution patterns of pollutants at different times. The results serve as basis and reference to delimitation of environmental management and control unit demarcation in Binzhou nearshore.
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