Da-guo Wang1,2, Leslie-George Tham2, Qing-xiang Shui1
CMES-Computer Modeling in Engineering & Sciences, Vol.91, No.5, pp. 355-376, 2013, DOI:10.3970/cmes.2013.091.355
Abstract A finite element method, which is the characteristic-based operatorsplitting (CBOS) algorithm, is adopted to solve unsteady incompressible Navier- Stokes (N-S) equations. In each time step, the equations are split into the diffusive part and the convective part. The convective part is discretized using the characteristic Galerkin method and solved explicitly. The moving interface is captured by the pseudo-concentration method, thus, a new dam-break model is established. Through the validation of a dam-break onto a downstream dry bed or wet bed, it is shown that the present model can accurately simulate the moving interface flows. We also study dam-break in a… More >
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