水道港口2025，Vol.46Issue(2)：196-203,8.
波流作用下粉沙悬沙分布的数值模拟研究
Numerical simulation on vertical distribution of suspended sediment concentration of silt under combined waves and current
摘要
Abstract
In order to study channel siltation and sedimentation reduction through submerged breakwater on silty beach,it is important to accurately describe the periodic motion of silt under the combined waves and current.The flux boundary condition was used to describe the suspension of sediment,and the modified buoyancy term in the turbulence model was used to describe the stratification effect of suspended silt.Based on the REEF3D open-source model,the model of sediment transport under the wave-current was established.In the model,the Navier-Stokes equation was used to describe the fluid motion,the k-ω model was used to calculate the eddy viscosity,the level set method was used to describe the free surface,the inlet-velocity wavemaking and active absorption methods were used to construct the wave-current numerical tank,and the convection-diffusion equation was used to describe suspended sediment transport.The results of the model are compared with the collected measured data,which shows that under the combined action of waves and current with different wave heights,the model can reasonably reflect the spatiotemporal variation of suspended sediment of silt.The model is applied to the calculation of channel siltation,and the simulation results basically agree with the experimental data.关键词
层化效应/悬沙浓度/粉沙/波流共同作用/REEF3D模型Key words
stratification/suspended sediment concentration/silt/combined waves and current/REEF3D model分类
交通运输引用本文复制引用
郭继涛,张庆河,张金凤..波流作用下粉沙悬沙分布的数值模拟研究[J].水道港口,2025,46(2):196-203,8.基金项目
国家重点研发计划项目(2021YFB2601100) （2021YFB2601100）
国家自然科学基金资助项目(U1906231) （U1906231）
