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The Numerical Simulation Study of 2-D Hydrodynamic and Water Quality in Jiaozhou Bay

Author: WangNa
Tutor: KongLingShuang
School: Qingdao Technological University
Course: Environmental Engineering
Keywords: Hydrodynamic Numerical Simulation ADI Water quality Random factors
CLC: TV131.2
Type: Master's thesis
Year: 2008
Downloads: 49
Quote: 0
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Abstract


Marine resource treasure house of a rich and has not been fully developed , the marine bound to an important space for mankind to achieve sustainable development . Jiaozhou Bay is the cradle of the formation and development of Qingdao . But along with the process of urbanization and the rapid development of the coastal economy , the total amount of pollutants discharged into the Jiaozhou Bay increased pollution of coastal waters in Jiaozhou Bay presents more severe . In coastal waters , the trend is the the main hydrodynamic conditions , is also the most basic of physical movement in these areas , pollutants along with the trend of the movement and migration and diffusion . In order to protect the Jiaozhou Bay , to prevent the deterioration of the environment within the Bay , you must understand the the trend movement as well as the transport and diffusion of pollutants law . This paper established a two-dimensional hydrodynamic model , and apply it to the Jiaozhou Bay ; using the finite difference ADI method for discrete control equation , using a rectangular mesh method , use of wet and dry discriminant method to deal with the moving boundary of Jiaozhou Bay the trend of sports simulation are in good agreement with the measured values ??. Hydrodynamic model based on pollutant dispersion model , and Jiaozhou Bay the 2001 pollutant COD, nitrogen and phosphorus concentrations were simulated in good agreement with the measured value . The random factors introduced into the mathematical model , considering the uncertainty of conditions in the input conditions of the differential equations , then study the probability of the output characteristics . By changing the water boundary conditions , changing the diffusion coefficient in the model , considering the observed trend of the maximum concentration of pollutants COD , and the confidence interval based on a certain probability level . Work above , the movement of the trend of Jiaozhou Bay and pollutant dispersion conditions have a more comprehensive embody and provide a reference basis , Jiaozhou Bay for future research work .

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CLC: > Industrial Technology > Hydraulic Engineering > The basic science of water resources project > Hydraulics > Hydraulic theory, calculation, experiment > Hydrodynamic
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