9/1/2023 0 Comments Dambrk Software![]() The basic component of the DAMBRK model is a dynamic routing technique for determining the modifications to the dambreak flood wave as it advances through the downstream valley, including its travel time and resulting water surface elevations. Also, the effects of storage depletion and upstream inflows on the computed outflow hydrograph are accounted for through storage routing within the reservoir. The model computes the reservoir outflow hydrograph resulting from the breach via a broad-crested weir flow approximation, which includes effects of submergence from downstream tailwater depths and corrections for approach velocities. The model consists of a breach component which utilizes simple parameters to provide a temporal and geometrical description of the breach. DAMBRK: ABSTRACT A dam-break flood forecasting model (DAMBRK) is described and applied to two actual dam-break flood waves. CROSS-SECTION - plots topwidth-elevation from cross-section data in x-y coordinates also computes distance weighted average cross sections also converts HEC 'GR' cards to the correct NWS Format. ![]() ![]() DWOPER - Enhanced Network Version 7/18/84 (latest revision 8/89) - an unsteady flow dynamic routing model (one-dimensional Saint-Venant equations) for a single channel or network (dendritic and/or bifurcated) of channels for free surface or pressurized flow (more information below). ![]()
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