基于OpenFOAM的波浪作用下海床动力响应

基于计算流体力学开源软件OpenFOAM建立了波浪-海床-结构物相互作用的数学模型。其中，数值波浪水槽采用动量源函数造波，求解雷诺平均的N-S方程，VOF方法追踪自由表面；海床动力响应基于Biot固结理论，并结合摩尔-库伦塑性本构模型。首先对波浪作用下海床动力响应问题进行研究，数模结果与实验结果及解析解吻合良好。进一步在数值水槽中添加孔隙介质模型，模拟潜堤周围海床动力响应问题，结果表明本模型可以较好地模拟出考虑结构物影响的海床动力响应过程。...

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Bibliographic Details
Published in中国港湾建设 Vol. 37; no. 3; pp. 1 - 5
Main Author 陈宝清;张金凤;史小康
Format Journal Article
LanguageChinese
Published 2017
Subjects
波浪作用;结构物;海床;动力响应;OpenFOAM
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ISSN2095-7874

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Summary:基于计算流体力学开源软件OpenFOAM建立了波浪-海床-结构物相互作用的数学模型。其中，数值波浪水槽采用动量源函数造波，求解雷诺平均的N-S方程，VOF方法追踪自由表面；海床动力响应基于Biot固结理论，并结合摩尔-库伦塑性本构模型。首先对波浪作用下海床动力响应问题进行研究，数模结果与实验结果及解析解吻合良好。进一步在数值水槽中添加孔隙介质模型，模拟潜堤周围海床动力响应问题，结果表明本模型可以较好地模拟出考虑结构物影响的海床动力响应过程。
Bibliography:wave action;structure;seabed;dynamic response;OpenFOAM
12-1310/U
We established a numerical model of wave-seabed-structure interaction based on the open source softwareOpenFOAM of computational fluid dynamics.The numerical wave tank is governed by the Reynolds-Averaged Navier-Stokesequations and applied the momentum source function to generate waves.The volume of fluid method is used to track the waterfree-surface.The dynamic response model of seabed is formulated on the basis of Biot's consolidation theory and combined withthe plasticity Mohr-Coulomb constitutive relation.Firstly,the dynamic response of seabed under wave action is investigated,and the results agreed well with the experimental and analytical results.Furthermore,the porous media model was added tosimulate the dynamic response of the seabed around the submerged breakwater.The results show that the model can wellsimulate the dynamic response of the seabed considering the influence of the structure.
ISSN:2095-7874