Pollutant Dispersion Modeling in Natural Streams Using the Transmission Line Matrix Method

Water

Safia Meddah²  Abdelkader Saidane²  Mohamed Hadjel¹  Omar Hireche³ 

[1] Laboratory LSTGP, Department of Organic and Industrial Chemistry, Faculty of Chemistry, University of Sciences and Technologies of Oran-Mohamed Boudiaf (USTO-MB), P.B.1505 El M’naouer, Oran 31000, Algeria; E-Mail:;Laboratory CaSiCCE, Department of Electrical Engineering, Ecole Normale Polytechnique d’Oran, P.B.1523 El M’naouer, Oran 31000, Algeria; E-Mail:;Department of Mechanical Engineering, Ecole Normale Polytechnique d’Oran, P.B.1523 El M’naouer, Oran 31000, Algeria; E-Mail:

关键词: TLM;    pollutant;    one-dimensional propagation;    longitudinal dispersion;    stream pollution;   

DOI  :  10.3390/w7094932

来源: mdpi

【 摘 要 】

Numerical modeling has become an indispensable tool for solving various physical problems. In this context, we present a model of pollutant dispersion in natural streams for the far field case where dispersion is considered longitudinal and one-dimensional in the flow direction. The Transmission Line Matrix (TLM), which has earned a reputation as powerful and efficient numerical method, is used. The presented one-dimensional TLM model requires a minimum input data and provides a significant gain in computing time. To validate our model, the results are compared with observations and experimental data from the river Severn (UK). The results show a good agreement with experimental data. The model can be used to predict the spatiotemporal evolution of a pollutant in natural streams for effective and rapid decision-making in a case of emergency, such as accidental discharges in a stream with a dynamic similar to that of the river Severn (UK).

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.