Abst'/> CFD verification and validation of green sea loads
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CFD verification and validation of green sea loads

机译：CFD绿海货物验证和确认

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摘要

AbstractAn extensive verification and validation for green sea load simulations is presented. The calculations are performed using the Naval Hydro pack, a library based on foam–extend, which is an open source Computational Fluid Dynamics software. The geometric Volume of Fluid method is used for interface advection, while the Ghost Fluid Method is employed to discretise the free surface boundary conditions at the interface. Pressure measured at the deck of a fixed structure is compared to experimental data for nine regular waves. Verification is performed using four refinement levels in order to reliably assess numerical uncertainties. A detailed uncertainty analysis comprises both numerical and experimental data. Comparable uncertainties are exhibited in simulations and experiments, with good agreement of results.Highlights•Verification and validation of the CFD code for green sea loads.•Detailed verification using least squares fit method for unsteady flows.•Results validated against experimental measurements.•Paper shows the state of a modern CFD code for green sea assessment.
机译： 摘要 介绍了对绿海负荷模拟的广泛验证。使用Naval Hydro pack（基于泡沫扩展的库）进行计算，该库是开源的Computational Fluid Dynamics软件。流体的几何体积法用于界面平流，而鬼影流体法用于离散界面处的自由表面边界条件。将固定结构甲板处测得的压力与九个规则波的实验数据进行比较。使用四个细化级别进行验证，以便可靠地评估数值不确定性。详细的不确定性分析包括数值和实验数据。在模拟和实验中表现出可比的不确定性，结果具有很好的一致性。 突出显示 • 绿海货物CFD代码的验证和确认。 • 使用最小二乘拟合法对不稳定流进行详细验证。 • 针对实验测量结果进行了验证。 • 纸张显示了用于绿海评估的现代CFD代码的状态。

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  • 来源
    《Ocean Engineering》 |2018年第15期|500-515|共16页
  • 作者

    Inno Gatin; Vuko Vukčević; Hrvoje Jasak; Jeonghwa Seo; Shin Hyung Rhee;

  • 作者单位

    University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture;

    University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture;

    University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture,Wikki Ltd;

    Research Institute of Marine Systems Engineering, Seoul National University;

    Research Institute of Marine Systems Engineering, Seoul National University;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Green sea loads; Regular waves; CFD; Naval Hydro pack; VOF;

    机译：绿海载荷;规则波浪;CFD;海军水电包;VOF;

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