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A coupled smoothed particle hydrodynamic and finite particle method: An efficient approach for fluid-solid interaction problems involving free-surface flow and solid failure

机译：耦合平滑的颗粒流体动力学和有限颗粒方法：一种有效的流体固体相互作用问题的方法，涉及自由表面流动和固体衰竭

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摘要

In this paper, an efficient numeric approach coupling smoothed particle hydrodynamics (SPH) with finite particle method (FPM) for fluid-solid interaction (FSI) problems is proposed and discussed. SPH is used for modeling fluid domains because of its ability to simulate free-surface flow. FPM is used to model solid domains as discretized particles to address motion, deformation, fracture and contact. The treatments of reduction of rigid body motion in FPM achieve a high efficiency for very large deformation analysis. The coupled SPH with FPM has been developed for imposing boundary condition by employing virtual particles. The proposed scheme is validated by published benchmark examples, and the results demonstrates good agreement with experimental, numerical and analytical results. The results of simulation of FSI problems with solid failure also indicates that the coupled SPH and FPM is straightforward in concept, and efficient in modeling solid failure and FSI with free-surface flow, which is promising for addressing nonlinear, fracture and contact problems in FSI processes.
机译：本文提出并讨论了具有有限颗粒方法（FPM）的有效粒子流体动力学（SPH）的有效数值方法，并讨论了用于流体固体相互作用（FSI）问题。 SPH用于建模流体畴，因为它能够模拟自由表面流动。 FPM用于将固体结构域模拟为离散颗粒以解决运动，变形，断裂和接触。 FPM中刚体运动减少的处理可实现非常大的变形分析的高效率。通过采用虚拟粒子，已经开发了具有FPM的耦合SPH，用于施加边界条件。拟议的计划是通过公布的基准实例验证的，结果表明了与实验，数值和分析结果的良好一致性。用于固体故障的FSI问题的模拟结果也表明耦合的SPH和FPM在概念中是简单的，并且有效地使用自由表面流动建模和FSI，这是寻求FSI中的非线性，断裂和接触问题的有效性流程。

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  • 来源
    《Engineering analysis with boundary elements》 |2020年第9期|143-155|共13页
  • 作者

    Feihong Liu; Ying Yu; Qinhua Wang; Yaozhi Luo;

  • 作者单位

    Department of Civil and Environmental Engineering Shantou University Shantou 515063 China;

    Department of Civil and Environmental Engineering Shantou University Shantou 515063 China Key Laboratory of Structure and Wind Tunnel of Guangdong Higher Education Institutes Shantou 515063 China Guangdong Engineering Center for Structure Safety and Health Monitoring Shantou University Shantou 515063 China;

    Department of Civil and Environmental Engineering Shantou University Shantou 515063 China Key Laboratory of Structure and Wind Tunnel of Guangdong Higher Education Institutes Shantou 515063 China Guangdong Engineering Center for Structure Safety and Health Monitoring Shantou University Shantou 515063 China;

    Department of Civil Engineering Zhejiang University Hangzhou 310028 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Finite particle method; Smoothed particle hydrodynamics; Fluid-solid interaction; Free-surface flow; Fracture; Contact and impact;

    机译：有限颗粒法;平滑粒子流体动力学;流体固体相互作用;自由表面流动;断裂;联系和影响;

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