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A high-resolution numerical model for simulating of 2D flood waves was presented based on using the two-step finite-volume component-wise TVD (total variation diminishing) scheme, by which second-order accuracy in both time and space is achieved. Numerical simulations for 2D flood waves were implemented. The comparisons with other numerical solutions show that the proposed method can be capable of...
This paper is concerned with a mathematical model for numerical simulation of 2D flood waves due to complete or partial dam-break. The governing water equations are solved by a implicit bidiagonal numerical scheme, based on the MacCormack's predictor-corrector technique. The mathematical model is used to numerically compute the water surface from supercritical flow to sub critical one or from sub...
This This paper is concerned with the numerical solution of two-dimensional flows. The technique of boundary-fitted coordinate system is used to overcome the difficulties resulting from the complicated shape of natural river boundaries, the method of physical fractional steps is used to solve the partial differential equations in the transformed plane, and the technique of moving boundary is used...
Approximately two-thirds of heart valves are bileaf plane mechanical heart valves, however the plane valveleaf is not the best shape for the hydrodynamic characteristics. The main purpose of this study is to compare the hydrodynamic characteristics of plane valve with curved valve under the steady flow analysis. In this work, two styles of curved valves were designed and nine different 3D flow models...
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