Title :
The Grey Differential Model of River Water Pollution and its Application
Author :
Zhu, Changjun ; Hao, Zhenchun
Author_Institution :
Coll. of Urban Constr., Hebei Univ. of Eng., Handan
Abstract :
Based on the grey theory, grey characters of river environment system are analyzed, the velocity and dispersion coefficient and attenuation in river are considered as uncertainty parameters and expressed as gray parameters. A grey differential equation of contaminant diffusion in river is built. And the equation has special structure. The truncation error of finite differential method in solving the model is corrected. According to the model, distribution values of pollutant concentration under sudden pollutant discharged can be obtained directly, which can provide abundant and useful water quality information for the plan and control of water pollution. It is shown that the calculated results obtained from the gray model are reliable and reasonable.
Keywords :
finite difference methods; grey systems; water pollution; contaminant diffusion; finite differential method; grey differential model; river water pollution; truncation error; Attenuation; Differential equations; Educational institutions; Finite wordlength effects; Hydrology; Partial differential equations; Rivers; Uncertainty; Water pollution; Water resources; finite differential; grey model; truncation error;
Conference_Titel :
Knowledge Acquisition and Modeling Workshop, 2008. KAM Workshop 2008. IEEE International Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3530-2
Electronic_ISBN :
978-1-4244-3531-9
DOI :
10.1109/KAMW.2008.4810433
