Research Article
Apr 1979
Numerical Simulation of Mixing in Natural Rivers
Publication: Journal of the Hydraulics Division
Volume 105, Issue 4
Abstract
A numerical model is developed for two-dimensional transient mixing in natural river channels. Through the use of an orthogonal curvilinear coordinate system based on the geometry and the flow distribution of the river channel, the physical domain is mapped into a rectangular strip by introducing the cumulative discharge as the new transverse coordinate. The concentration values at each point in the grid system are then determined at time levels by using a combined implicit/explicit finite difference successive scheme. A computer program is developed to solve these equations, and a case study is presented and verified with an existing steady-state analytical solution and field measurement.
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Published In
Journal of the Hydraulics Division
Volume 105 • Issue 4 • April 1979
Pages: 393 - 408
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: Apr 1979
Published online: Feb 3, 2021
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Terrence O. Harden, AM.ASCE
Stearns and Wheeler, Cazenovia, N.Y.; formerly, Grad. Student, Dept. of Civ. and Environmental Engrg., Clarkson Coll. of Tech., Potsdam, N.Y., USA
Hung Tao Shen, M.ASCE
Asst. Prof., Dept. of Civ. and Environmental Engrg., Clarkson Coll. of Tech., Potsdam, N.Y., USA
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.