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首页> 外文期刊>Journal of Flow Visualization and Image Processing >NUMERICAL AND EXPERIMENTAL VISUALIZATION OF THE FLOW OVER BLUFF BODIES
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NUMERICAL AND EXPERIMENTAL VISUALIZATION OF THE FLOW OVER BLUFF BODIES

机译：弹体流动的数值与实验可视化。

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摘要

The flow around several bluff bodies is studied both numerically and experimentally. The flow is simulated using a mixed Eulerian-Lagrangian numerical algorithm based on Vortex Methods. This method allows the study of the unsteady flow dynamics by using instantaneous numerical velocity and vorticity fields. However, only the mean two-dimensional flow is analyzed in this paper. Furthermore, experimental flow visualization using laser light sheet and Particle Image Velocimetry are performed on the same geometries inside a water channel. Several configurations are studied at different Reynolds numbers and a comparison of the numerical results with the experimental results is presented. The numerical results show good agreement with the experimental results and with other studies.
机译：数值和实验研究了多个钝体周围的流动。使用基于Vortex方法的混合Eulerian-Lagrangian数值算法模拟流量。该方法允许使用瞬时数值速度和涡流场研究非定常流动动力学。但是，本文仅分析平均二维流。此外，在水道内相同的几何形状上使用激光片和粒子图像测速技术进行了实验流可视化。研究了不同雷诺数下的几种构型，并将数值结果与实验结果进行了比较。数值结果与实验结果及其他研究结果吻合良好。

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