Proceedings of the International Conference on Coastal Engineering | |
NUMERICAL MODEL OF CURRENT AND SEDIMENT TRANSPORT IN THE WAVE BOUNDARY LAYER | |
Yuliang Zhu1  Hao Wang1  Jing Ma1  | |
关键词: turbulent boundary layer; mathematical model; k-ε model; eddy-viscosity; | |
DOI : 10.9753/icce.v32.sediment.5 | |
学科分类:建筑学 | |
来源: Coastal Engineering Research Council | |
【 摘 要 】
Mathematical model is one of the means to study of turbulent wave boundary layer. The paper analysis of the existing model, adopt a more reasonable boundary condition to establish a improved mathematical model of 1DV turbulent wave boundary layer using k-ε model. The paper recommends brief flow simulation and mainly introduced the simulation of the sediment concentration. The paper use the eddy-viscosity value which calculation by the mathematical model and the model of You Zaijin on time-invariant eddy-viscosity into the relationship about sediment diffusion coefficient and eddy-viscosity to calculate the sediment concentration. The calculation results turns out the way that use the eddy-viscosity value which calculation by the mathematical model into the relationship can obtain better timely sediment concentration value. When use the model simulates the time-invariant sediment concentration, the two ways have not many distinctions. It means the way that that use the eddy-viscosity value which calculation by the mathematical model into the relationship is feasible.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912020441823ZK.pdf | 268KB | download |