Water Quality Modelling by Numerical Solution of ADE Using An Integrated Model

Article type: Research Article

Authors: Kashefipour, S.M. | Tavakoli, A.A. | Falconer, R.A.

Affiliations: Water Sciences Engineering Faculty, Shahid Chamran University, Ahwaz, Khozestan, Iran | Civil Engineering Department, Cardiff University, Cardiff, Wales, UK

Note: [] Corresponding author. E-mail: Kashefipour@excite.com

Abstract: Sediment and solute transport processes are the most important existing problems in the coastal, estuarine and riverine waters. Prediction of these processes may be carried out using the numerical solution of the partial differential and dynamic Advective–Diffusion Equation (ADE). The type of the numerical solution is considerably effective on the stability and accuracy of the solution. In this paper an integrated new and effective scheme has been presented, combining two different numerical methods including ULTIMATE QUICKEST (UQ) and finite difference central scheme for solving ADE. This integrated model was verified using a standard example, and was then successfully applied to predict the suspended sediment concentrations in the Humber river (UK).

Keywords: Numerical modelling, sediment and solute transport, ULTIMATE QUICKEST scheme, advective diffusion equation

Journal: Asian Journal of Water, Environment and Pollution, vol. 4, no. 2, pp. 11-15, 2007