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水質保全 = Journal of Korean Society on Water Quality v.26 no.2, 2010년, pp.332 - 342  
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하천 내 유사와 인 이동에 관한 모델링
Modeling of Sediment and Phosphorous Transport in a River Channel

김경현   (국립환경과학원  );
  • 초록

    A model has been developed to investigate in-river sediment and phosphorus dynamics. This advective-dispersive model is coupled with hydrodynamics and sediment transport submodels to simulate suspended sediment, total dissolved phosphorus, total phosphorus, and particulate phosphorus concentrations under unsteady flow conditions. It emphasizes sediment and phosphorus dynamics in unsteady flow conditions, in which the study differs from many previous solute transport studies, conducted in relatively steady flow conditions. The diffusion wave approaximation was employed for unsteady flow simulations. The first-order adsorption and linear adsorption isotherm model was used on the basis of the three-layered riverbed submodel with riverbed sediment exchange and erosion/deposition processes. Various numerical methods were tested to select a method that had minimal numerical dispersion under unsteady flow conditions. The responses of the model to the change of model parameter values were tested as well.


  • 주제어

    In-stream dynamics .   Phosphorous transport .   Sediment transport .   Water quality modeling.  

  • 참고문헌 (18)

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    5. Di Toro, D. M., Fitzpatrick, J. J., and Thomann, R. V. (1981. rev. 1983). Water Quality Analysis Simulation Program (WASP) and Model Verification Program (MVP) - Documentation. Hydroscience, Inc., Westwood, NY, for U.S. EPA, Duluth, MN, Contract No. 68-01-3872. 
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    7. Kim, K. (2005). Sediment and phosphorus transport in a river channel under unsteady now conditions. USA, Ph.D. dissertation, Univ. of IIlinois-UC, Urbana, IL. 
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    11. Singh, V. P. (1996). Kinematic Wave Modeling in Warer Resources: Surface-Water Hydrology, John Wiley and Sons, New York. 
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    13. van Rijn, L. C. (1984). Sediment transport. part II: suspended load transport. J. Hyd. Eng., ASCE, 110(11), pp. 1613-1641. 
    14. Wade, A. J., Hornberger, G. M., Whitehead, P. G., Jarvie, H. P., and Flynn, N. (2001). On modeling the mechanisms thai control in-stream phosphorus, macrophyte, and epiphyte dynamics: An assessment of a new model using general sensitivity analysis. Waler Resow. Res., 37(11), pp. 2777-2792. 
    15. Zhang, R., Huang. K., and van Genuchten, M. T. (1993). An efficient Eulerian-Lagrangian method for solving solute transport problems in steady and transient now fields. Waler Resour. Res., 29(12), pp. 4131-4138. 
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