Norazaliza, Mohd Jamil and Khan, Ilyas (2024) Unravelling the influence of advection and diffusion on the spatial and temporal evolution of pollutant concentration. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 119 (2). pp. 1-12. ISSN 2289-7879. (Published)
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Abstract
The spatial distribution and temporal evolution of pollutant concentration are complex phenomena. Advection and diffusion are the primary drivers influencing the dynamic of pollutant concentrations. This paper aims to investigate and elucidate the roles of advection and diffusion on pollutant concentration's spatial and temporal evolution in a one-dimensional domain. The finite element method (FEM) is used to solve the governing equation numerically. The underlying concepts of FEM hand-to-hand with MATLAB software were presented. The simulation study revealed that advection and diffusion uniquely impact the system's dynamic. Advection, driven by the bulk movement of water, leads to rapid and long-range transport of pollutants, while diffusion, driven by random molecular motion, causes more gradual dispersion. The interplay between these processes is a critical determinant in understanding the overall behaviour of pollutant concentrations over time and space.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Advection-diffusion equation; Finite element method (FEM); MATLAB; partial differential equations (PDE) |
| Subjects: | Q Science > QA Mathematics |
| Faculty/Division: | Center for Mathematical Science |
| Depositing User: | Mrs. Nurul Hamira Abd Razak |
| Date Deposited: | 27 Mar 2025 01:22 |
| Last Modified: | 27 Mar 2025 01:22 |
| URI: | http://umpir.ump.edu.my/id/eprint/44095 |
| Download Statistic: | View Download Statistics |
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