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Validation of an Unsteady Two-dimensional Hydrodynamic and Transport Model with Experiments  

Moon, Hyoung-Bu (Department of Civil and Environmental System Engineering, Chonnam National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.28, no.11, 2006 , pp. 1168-1179 More about this Journal
Abstract
The validity of an unsteady two-dimensional(2-D) numerical hydrodynamic and pollutant dispersion model(2DNHPDM) was evaluated using the data obtained from I-sa streams in Sooncheon, Chonnam, during rain-fall run-off. Field observations was conducted for 35 hours during the 10 hours rainfall event on 7th May 2005. The water level, 2-D velocity, flow field, and COD at seven points selected along the river were measured at intervals of one hour. The model was applied to describe two-dimensional movement of dissolved pollutants in meandering non-uniform river. Major physical processes affecting the lateral and horizontal mixing of the river flow were simulated. The model was proved effective in describing the hydrodynamics and dispersion of the river pollutants from its major tributaries as well as non-point sources.
Keywords
Unsteady Flow; Validity; Non-Point Sources; 2DNHPDM; Lateral and Horizontal Dispersion Coefficient;
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