Abstract
Dam-break flow in channel transitions is simulated by numerically solving the system of governing two-dimensional equations. A simple algebraic coordinate transformation technique is adopted for converting the general physical domain of a transition into a rectangular computational domain. The MacCormack scheme is used for solving the transformed equations. Numerical results of the present study show satisfactory agreement with the experimental data available in the literature. They also match previous numerical results well. Effects of the contractions and expansions on the dam-break flow depth at the dam site is also studied.
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