The experiment shows that the PIV technique can be utilized to measure the unsteady complex flow of passive vibration, and analyses the vortex-induced vibration.
试验证明了PIV技术可以应用于被动振动非定常复杂流场的测量中，并对两维翼流体旋涡诱发振动响应进行了分析。
This type of flow has not only complex flow separation, but the character of unsteady bringing noise.
这类流动不仅具有复杂的流动分离结构，而且常常不稳定，也是噪声发生的主要区域。
Therefore, developing scientific visualization methods for observing and studying unsteady structures in these complex flow fields has a significant and practical meaning.
因此，探索用科学计算可视化的手段，观察和研究这类复杂流场中的不稳定结构就具有重要和现实的意义。
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