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http://dx.doi.org/10.14346/JKOSOS.2016.31.4.143

Numerical Simulation of Dam Break Flow using EFDC Model and Parameter Sensitivity Analysis  

Jang, Chul (Department of Safety Engineering, Incheon National University)
Song, Chang Geun (Fire Disaster Prevention Research Center, Incheon National University)
Publication Information
Journal of the Korean Society of Safety / v.31, no.4, 2016 , pp. 143-149 More about this Journal
Abstract
In this study, a series of numerical simulation of dam break flow was conducted using EFDC model, and input conditions including cell size, time step, and turbulent eddy viscosity were considered to analyze parameter sensitivity. In case of coarse mesh layout, the propagated length of the shock wave front was ${\Delta}_x$ longer than that of other mesh layouts, and the velocity results showed jagged edge, which can be cured by applying fine grid mesh. Turbulent eddy viscosity influenced magnitude of the maximum velocity passing through gate up to 20% and the cell Peclet number less than 2.0 ensured no numerical oscillations.
Keywords
EFDC; dam break flow; cell size; time step; courant number; peclet number; parameter sensitivity analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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