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流体中速度场检测产品配置单(粒子图像测速)

  • 应用领域: 铁路/船舶/交通
  • 检测样品: 流体
  • 检测项目:速度场
  • 浏览次数:696 次
  • 下载次数:110 次
  • 发布时间:2008-02-11
  • 参考标准:暂无
This paper presents an experimental study on wave interactions with a rectangular barge in a beam sea condition. Regular waves with a wave period the same as the natural frequency of the barge were used in the experiments due to the fact that the barge is prone to capsizing under such waves. The barge was fixed on the free surface and no wave overtopping was assumed. Particle Image Velocimetry (PIV) was employed to measure the full-field two-dimensional velocity. Since the flow is highly turbulent, the phase-averaging technique was used to the extract the mean flow and turbulence properties. The mean flow pattern, including velocity, vorticity, and streamline, was analyzed to quantify the mechanism of the interactions. The generation and evolution of vorticity and turbulence kinetic energy were demonstrated.The turbulent kinetic energy is found to highly correlate with the vorticity field
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