AYAN CHATTERJEE
Articles written in Journal of Earth System Science
Volume 129 All articles Published: 1 January 2020 Article ID 0001 Research Article
Groundwater contamination in mega cities with finite sources
AYAN CHATTERJEE MRITUNJAY KUMAR SINGH VIJAY P SINGH
Groundwater contamination due to multiple sources occurring in mega cities was modelled. One constant source contamination was considered at the source boundary, whereas other sources may join in between at various locations at different times. Initially, the aquifer was contamination-free in mega cities and was subsequently contaminated by means of different sources in due course of time. One-dimensional ADE (Advection Dispersion Equation) for modelling groundwater contamination was used and solved analytically in the semi-infinite aquifer domain for a finite number of point sources. A numerical solution wasalso obtained for two sources to compare analytical solutions. Results were examined for different velocity profiles to show the maximum contaminant concentration level with distance. This may be helpful to model the maximum possible number of point sources of contamination (i.e., it represents approximately what happens in the field situation). Some remedial measures may be taken to overcome these kinds of contamination problems in mega cities by treating the sources so that recharge of the aquifer is not affected.
Volume 131 All articles Published: 30 May 2022 Article ID 0131 Research article
Advances in analytical solutions for time-dependent solute transport model
ROHIT KUMAR AYAN CHATTERJEE MRITUNJAY KUMAR SINGH FRANK T-C TSAI
This study adopts generalized dispersion theory in one-dimensional advection–dispersion equation
(ADE), where time-dependent dispersion and velocity are considered. The generalized dispersion theory
allows mechanical dispersion to be directly proportional to seepage velocity with power
$\bf{Highlights}$
$\bullet$ Generalized dispersion theory in 1-D ADE
$\bullet$ Generalized semi-analytical solution using HAM
$\bullet$ Compared with analytical solution
$\bullet$ Good agreement for 6th order of semi-analytical solution
Volume 131, 2022
All articles
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