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Numerical simulation of one-dimensional dam-break: A decoupled scheme with WENO reconstruction |
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| Authors: | ZHANG Wenzhong CHEN Jingqiu ZHANG Yongxiang and MIU Jilun |
| Institution: | College of Resources and Enviromental Science, Chongqing University, Chongqing 400044, China; College of science, Chongqing Jiaotong University, Chongqing 400074, China;College of Resources and Enviromental Science, Chongqing University, Chongqing 400044, China;College of Resources and Enviromental Science, Chongqing University, Chongqing 400044, China;Southwestern Hydraulic Engineering Research Institute for Waterway, Chongqing Jiaotong University, Chongqing 400074, China |
| Abstract: | Based on the reconstruction of interface variables with the fifth-order WENO, a high resolution scheme is proposed and the performance of capturing dam break waves is analyzed. With the part is linearized through Roe average, one dimensional shallow water equation is directly and decoupled solved, the velocity distribution and depth distribution are obtained. Numerical simulation shows that the decoupled schemes with WENO5 reconstruction has higher resolution and it shows the movement of dam-break. |
| Keywords: | dam-break weighed essentially non-oscillatory numerical simulation conservation |
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