NDLI: On solute dispersion from an elevated line source in an open-channel flow

Content Provider	Springer Nature Link
Author	Mazumder, B.S. Bandyopadhyay, S.
Copyright Year	2001
Abstract	The streamwise dispersion of contaminant molecules due to a turbulent shear flow over a gravel-bed surface is examined when the solute is released from an elevated line source. A finite-difference, implicit method is used to solve the unsteady turbulent convection-diffusion equation, employing a combined scheme of central and four-point upwind differences for the steady-state condition and the Alternating Direction Implicit (ADI) method for the unsteady equation. It is shown how the mixing of contaminant is effected by the mean velocity due to the `log-wake law' and the corresponding eddy-diffusivity, when the solute is released in terms of a δ-function. The results for the steady-state condition are compared with existing experimental data and some other numerical results. The results obtained by the present method are in much better agreement with the experimental data than those obtained by the previous solution scheme, when the `log-wake-law' and the corresponding eddy-diffusivity are used. Far from the source, the concentration increases with time (the rate of increase is rapid near the source), asymptotically approaching a steady state after a certain time; concentrations are about two thirds of those near the source. The behaviour of iso-concentration lines in the vertical plane is also studied.
Starting Page	197
Ending Page	209
Page Count	13
File Format	PDF
ISSN	00220833
Journal	Journal of Engineering Mathematics
Volume Number	40
Issue Number	2
e-ISSN	15732703
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2001-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Numeric Computing Analysis Applications of Mathematics Mathematical Modeling and Industrial Mathematics Mechanics
Content Type	Text
Resource Type	Article
Subject	Mathematics Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A multi-scale model for solute transport in a wavy-walled channel

Effect of pulsations on two-layer channel flow

Mathematical analysis of viscometric (polymer) flow fields in capillaries: Taylor dispersion revisited

Contamination Pattern in Groundwater Resulting from an Underground Source

Attachment-line heating in a compressible flow

Stokes flow around an asymmetric channel divider; a computational approach using MATLAB

Two-layer flow in a corrugated channel

Unsteady free-surface flow induced by a line sink

On solute dispersion from an elevated line source in an open channel flow

On solute dispersion from an elevated line source in an open-channel flow

Similar Documents

A multi-scale model for solute transport in a wavy-walled channel

Effect of pulsations on two-layer channel flow

Mathematical analysis of viscometric (polymer) flow fields in capillaries: Taylor dispersion revisited

Contamination Pattern in Groundwater Resulting from an Underground Source

Attachment-line heating in a compressible flow

Stokes flow around an asymmetric channel divider; a computational approach using MATLAB

Two-layer flow in a corrugated channel

Unsteady free-surface flow induced by a line sink

On solute dispersion from an elevated line source in an open channel flow

On solute dispersion from an elevated line source in an open-channel flow