Hydrodynamic Dispersion of Volatile Contaminant in an Open Channel Flow Using a Fitted Operator Approach

Gourab Saha, Nanda Poddar, Kajal Kumar Mondal, Niall Madden

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

This research work focuses on hydrodynamics and its role in free surface channel flow, specifically in relation to the transport of volatile contaminants. In these scenarios, the convection-diffusion equation is commonly employed to model the dispersion of these contaminants. Specifically, we investigate the ongoing release of tracer particles from a point source situated at an elevated position and subsequently analyze the emission of volatile contaminants from the exposed surface. Simple examples of open channel flow include rivers and canals, where the convection-diffusion problem is mainly influenced by convection. A special numerical method is employed to solve the concentration equation. This scheme is based on a fitted operator approach on a uniform mesh over the channel. The observation indicates that the concentration of contaminants decreases below the injection point as more solute particles are transported to the free surface through the process of volatilization. Furthermore, concentrations increase in both the longitudinal and transverse directions as the parameter for volatile contamination intensifies. The results of this research may have significant implications for managing the spread of air pollution originating from various types of water bodies. This knowledge can contribute to more effective pollution control measures and protect the health and well-being of communities near water bodies.

Original languageEnglish
Title of host publicationProceedings of the 2nd International Conference on Nonlinear Dynamics and Applications (ICNDA 2024) - Complex Systems, Fractals and Nonlinear Flows
EditorsAsit Saha, Santo Banerjee
PublisherSpringer Science and Business Media Deutschland GmbH
Pages674-687
Number of pages14
ISBN (Print)9783031691331
DOIs
StatePublished - 1 Jan 2024
Event2nd International Conference on Nonlinear Dynamics and Applications, ICNDA 2024 - Majitar, India
Duration: 21 Feb 202423 Feb 2024

Publication series

NameSpringer Proceedings in Physics
Volume315 SPP
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

Conference2nd International Conference on Nonlinear Dynamics and Applications, ICNDA 2024
Country/TerritoryIndia
CityMajitar
Period21/02/2423/02/24

Keywords

  • fitted operator
  • Free surface channel
  • volatile contamination

ASJC Scopus subject areas

  • General Physics and Astronomy

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