Scholarly record
INTEGRATED MODELING OF STAGNATING WATER AND URBAN DRAINAGE SYSTEMS
Abstract
The drainage challenges of a large settlement encompass both urban areas and adjacent agricultural and industrial zones. Surface runoff from increasingly impermeable subcatchments flows into the underground gravitational closed conduits drainage network of the settlement during rapid storm events, a phenomenon effectively modeled using hydrodynamic simulation tools such as SWMM. Meanwhile, excess precipitation water that fails to infiltrate the soil accumulates predominantly on agricultural lands outside the settlement, necessitating drainage through gravitational open channels. Typically, pumping stations are deployed to provide the requisite external energy. Steady flow simulation models like HEC-RAS are applied to accurately simulate water flow in open channels during longer water stagnation periods. Integrating the drainage systems of urban runoff and stagnant water is essential for capturing dynamic events effectively. This integration involves coupling unsteady models like HEC-RAS with hydrodynamic urban SWMM simulations. The resulting integrated model enables comprehensive simulation of the entire drainage network, facilitating predictions of system capacity during storm events, including periods of water stagnation.
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References7
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Number of times cited according to Crossref: 1
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