Particle Image Velocimetry Experiment and Computational Fluid Dynamics Simulation of Flow Around Rigid Cylinder

Wang Guangyao; Tian Ye; Kinnas Spyros A.

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Particle Image Velocimetry Experiment and Computational Fluid Dynamics Simulation of Flow Around Rigid Cylinder

机译：刚性圆柱体绕流的颗粒图像测速实验与计算流体力学模拟

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This work focuses on the study of the flow around a rigid cylinder with both particle image velocimetry (PIV) experiment and computational fluid dynamics (CFD) simulation. PIV measurements of the flow field downstream of the cylinder are first presented. The boundary conditions for CFD simulations are measured in the PIV experiment. Then the PIV flow is compared with both Reynolds-averaged Navier-Stokes (RANS) two-dimensional (2D) and large eddy simulation (LES) three-dimensional (3D) simulations performed with ANSYS FLUENT. The velocity vector fields and time histories of velocity are analyzed. In addition, the time-averaged velocity profiles and Reynolds stresses are analyzed. It is found that, in general, LES (3D) gives a better prediction of flow characteristics than RANS (2D).

机译：这项工作的重点是通过粒子图像测速（PIV）实验和计算流体动力学（CFD）模拟研究刚性圆柱体周围的流动。首先介绍了汽缸下游流场的PIV测量。在PIV实验中测量CFD模拟的边界条件。然后，将PIV流与使用ANSYS FLUENT执行的雷诺平均Navier-Stokes（RANS）二维（2D）和大涡流仿真（LES）三维（3D）仿真进行比较。分析了速度矢量场和速度的时间历史。此外，还分析了时间平均速度分布图和雷诺应力。已发现，通常，LES（3D）比RANS（2D）更好地预测流动特性。

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《Journal of offshore mechanics and arctic engineering》 |2018年第5期|051801.1-051801.11|共11页
作者
Wang Guangyao; Tian Ye; Kinnas Spyros A.;
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作者单位

Univ Texas Austin, Dept Civil Architectural & Environm Engn, Ocean Engn Grp, Austin, TX 78712 USA;

Univ Texas Austin, Dept Civil Architectural & Environm Engn, Ocean Engn Grp, Austin, TX 78712 USA;

Univ Texas Austin, Dept Civil Architectural & Environm Engn, Ocean Engn Grp, Austin, TX 78712 USA;

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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
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Particle Image Velocimetry Experiment and Computational Fluid Dynamics Simulation of Flow Around Rigid Cylinder

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