Numerical Computation of a Water-Quality Model with Advection-Diffusion-Reaction Equation Using an Upwind Implicit Scheme

Piyada Phosri

Abstract


In this research, numerical computations of water-quality model in a uniform flow stream are propose. The governing equation, which ia an advection-diffusion-reaction equation, ia approximated by using a finite difference technique. The upwind implicit scheme is used to approximate the pollutant concentration in each point at all time on a uniform flow stream. The accurate of the proposed computation technique is compared with the analytical and approximated solutions show in the examples.

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The Thai Journal of Mathematics organized and supported by The Mathematical Association of Thailand and Thailand Research Council and the Center for Promotion of Mathematical Research of Thailand (CEPMART).

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|ISSN 1686-0209|