Shibajee Singha Deo - Academia.edu (original) (raw)
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South China Sea Institute of Oceanology
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Papers by Shibajee Singha Deo
International Journal of Mathematics Trends and Technology, 2021
SSRN Electronic Journal, 2020
A steady state two-dimensional atmospheric advection- diffusion numerical model of area source ai... more A steady state two-dimensional atmospheric advection- diffusion numerical model of area source air pollution is presented. This model takes into account the actual form of variable settling velocity and eddy-diffusivity profile. Here the influence of settling velocity must be taken into account for the study of atmosphere dispersion. Therefore in the present analysis the two dimensional steady state dispersion of air pollutants over an area source under the settling effect has been investigated. The results obtained are compared with the known results and are found in close agreement.
In this paper various mathematical models developed to date accounts for only that portion of BOD... more In this paper various mathematical models developed to date accounts for only that portion of BOD which is in dissolved form and not the least in settleable form. These models also do not account for the storage zone in a scattered way in rivers and hence do not represents the actual situation caused by the discharge of partially treated/ untreated waste water, which contains a significant portion of BOD in settleable form into the water body with a large width where the water becomes stagnant anywhere, due to rag/garbage in rivers. The present paper represents a model to predict the concentration of total BOD when partially treated/untreated waste water is discharged into the Damodar river having staggered storage zones and thus address the above stated situation.
Journal of Computer and Mathematical Sciences, 2018
International Journal of Mathematics Trends and Technology, 2021
SSRN Electronic Journal, 2020
A steady state two-dimensional atmospheric advection- diffusion numerical model of area source ai... more A steady state two-dimensional atmospheric advection- diffusion numerical model of area source air pollution is presented. This model takes into account the actual form of variable settling velocity and eddy-diffusivity profile. Here the influence of settling velocity must be taken into account for the study of atmosphere dispersion. Therefore in the present analysis the two dimensional steady state dispersion of air pollutants over an area source under the settling effect has been investigated. The results obtained are compared with the known results and are found in close agreement.
In this paper various mathematical models developed to date accounts for only that portion of BOD... more In this paper various mathematical models developed to date accounts for only that portion of BOD which is in dissolved form and not the least in settleable form. These models also do not account for the storage zone in a scattered way in rivers and hence do not represents the actual situation caused by the discharge of partially treated/ untreated waste water, which contains a significant portion of BOD in settleable form into the water body with a large width where the water becomes stagnant anywhere, due to rag/garbage in rivers. The present paper represents a model to predict the concentration of total BOD when partially treated/untreated waste water is discharged into the Damodar river having staggered storage zones and thus address the above stated situation.
Journal of Computer and Mathematical Sciences, 2018