Author(s): Johannes Vassiliou Soulis
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Keywords: No Keywords
Abstract: The movement on a dry-bed of a two-dimens1onal flood wave resulting from the break of a dam has been one of the most important and challenging subjects in rapidly varied unsteady flows from the computational point ofview. An implicit time-marching, finite-volume numerical scheme was developed and subsequently applied for the solution of the two-dimensional unsteady open channel flow equations written in conservation form. In order to avoid the problems associated with a conventional grid system, a body fitted non orthogonal, local coordinate system was utilized. The proposed numerical technique was applied to determine the stage hydrographs, water surface profiles, and velocities of flood flows resulting from suddenly breached storage dams. Agreement between predictions and measurements regarding the wave front advancement and stage hydrographs is considered to be satisfactory.
Year: 1991