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Hydrodynamic Model for Heavily Polluted River in Mountainous City

Hongxiang Chai, Hongda Liu, Hao Lu, Yanrong Bao, Shen Li, Jian Zhou

Abstract


MIKE11 model was used to simulate the hydrodynamic force of Funiu creek which featured with steep slope, dramatic change of cross-sections, complicated hydraulic structures. Nash-Sutcliffe model efficiency coefficient and deterministic coefficientwas used to access the predictive power of the hydrological model.The simulation results of the three cross sections monitored showed that: Nash-Sutcliffe model efficiency coefficientsof water level simulationwere 0.62, 0.37,0.45respectively. Nash-Sutcliffe model efficiency coefficient of theflow simulation was 0.8. The model can meet the requirements of simulation accuracy. It is appropriate to set bed roughness separately according to the location of hydraulic structures. Detailed cross sections were called for simulation of river in mountainous city.Hydraulic structures had powerful influence on the hydrodynamic force.

Keywords


MIKE11, mountainous city, heavily polluted River, Hydrodynamic force, mathematical Model.

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