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首页> 外文期刊>The international journal of multiphysics >Numerical simulation of an elementary Vortex-Induced-Vibration problem by using fully-coupled fluid solid system computation
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Numerical simulation of an elementary Vortex-Induced-Vibration problem by using fully-coupled fluid solid system computation

机译：基于全耦合流固系统计算的基本涡旋振动问题的数值模拟

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摘要

elastically-mounted cylinder submitted to a fluid cross-flow has been extensively studied over the past decades, both experimentally and numerically, because of its theoretical and practical interest for understanding Flow-Induced-Vibrations (FIV) problems. In this context, the present article aims to expose a numerical study based on fully-coupled fluid-solid computations compared to previously published work [34], [36]. The computational procedure relies on a partitioned method ensuring the coupling between fluid and structure solvers. The fluid solver involves a moving mesh formulation for simulation of the fluid structure interface motion. Energy exchanges between fluid and solid models are ensured through convenient numerical schemes. The present study is devoted to a low Reynolds number configuration. Cylinder motion magnitude, hydrodynamic forces, oscillation frequency and fluid vortex shedding modes are investigated and the “lock-in” phenomenon is reproduced numerically. These numerical results are proposed for code validation purposes before investigating larger industrial applications such as configurations involving tube arrays under cross-flows [4].
机译：在过去的几十年中，由于其理论和实践的兴趣来理解流动引起的振动（FIV）问题，在流体和交叉流中进行了广泛的研究，无论是在实验上还是在数值上都进行了广泛的研究。在这种情况下，与以前发表的工作[34]，[36]相比，本文旨在揭示基于全耦合流固计算的数值研究。计算过程依赖于确保流体和结构求解器之间耦合的分区方法。流体求解器涉及用于模拟流体结构界面运动的移动网格公式。流体和固体模型之间的能量交换可通过方便的数值方案来确保。本研究致力于低雷诺数构造。研究了汽缸运动幅度，流体动力，振荡频率和流体涡旋脱落模式，并数值再现了“锁定”现象。在研究较大的工业应用（例如涉及横流下的管阵列的配置）之前，建议将这些数值结果用于代码验证目的[4]。

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