流体工学部門講演会講演論文集
Online ISSN : 2424-2896
セッションID: 212
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0212 旋回噴流の渦の振れ回りによって発生する非定常流れの調査
藤原 章博姜 東赫横田 和彦佐藤 光太郎
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The present research investigated unsteady characteristics of a swirling jet. The experimental facility was designed to control the swirl ratio adjusted by varying the angle of the guide vanes. For visualization, the swirling jet with a smoke was illuminated by a laser sheet. The circumferential velocities were measured by hot wire probes. By the computational fluid dynamics (CFD), the swirling jet was simulated at the same conditions as the experiment. The CFD and experimental results show that the swirling jet for the 0 degree of the guide vanes flows along the outside wall. By the FFT, one peak with the four rotating cells observed in the pictures taken for the swirling jet is found in the experiment and the CFD results.
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