波流边界层内外流速剖面的数值模拟

发布时间：2018-06-03 02:11

本文选题：海岸工程 + 波流相互作用　；参考：《中国科技论文》2016年07期

【摘要】：准确模拟波流相互作用下的流场结构是河口海岸动力学研究与工程实践的一个重要课题。改进了波流边界层控制方程中的波浪压强梯度垂向变化关系式,结合两方程紊流模型,建立了可以模拟边界层内外全水深流速剖面的数学模型。将计算结果与纯水流、纯波浪、波流同向和波流逆向实验数据进行对比,结果表明,模型可以较好地复演波流相互作用下边界层内外的时均流速分布特征。
[Abstract]:It is an important subject of estuarine and coastal dynamics research and engineering practice to accurately simulate the flow field structure under the interaction of wave and current. The vertical variation formula of wave pressure gradient in the governing equation of wave flow boundary layer is improved. A mathematical model is established to simulate the velocity profile of the whole water depth inside and outside the boundary layer. The calculated results are compared with the experimental data of pure water, pure wave, wave and current in the same direction and in reverse direction. The results show that the model can well reproduce the time-averaged velocity distribution inside and outside the boundary layer under the interaction of wave and current.
【作者单位】：海岸灾害及防护教育部重点实验室(河海大学);河海大学港口海岸与近海工程学院;
【基金】：国家自然科学基金资助项目(51425901) 高等学校博士学科点专项科研基金资助项目(20120094120006)
【分类号】：TV148

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