A three-dimensional model for suspended sediment transport based on the compact discontinuous Galerkin method

作者：Zhao, Zhangyi; Zhang, Qinghe^*; Zhao, Hongbo; Yang, Hua

来源：International Journal of Sediment Research, 2016, 31(1): 36-43.

DOI：10.1016/j.ijsrc.2014.06.001

• Advection-diffusion equation
• Model evaluation
• Discontinuity
• Rip currents
• Unstructured meshes
• Slope limiter

A three-dimensional numerical model was developed in the present paper, with the goal of simulating suspended sediment transport in discontinuous situations. In the model, the advection-diffusion equation of suspended sediment was solved using the compact discontinuous Galerkin (CDG) method based on unstructured meshes. The evaluation of the model revealed good agreement between the proposed model and existing theories. The model has second-order accuracy. Moreover, the model was applied to an idealized case of suspended sediment transport caused by rip currents based on the field spatial scale.

• 出版日期2016-3
• 单位水利工程仿真与安全国家重点实验室; 交通运输部天津水运工程科学研究所; 天津大学