원형 이중관 내에서 PIV 기법을 이용한 선회유동에 관한 실험적 연구

An Experimental Study on Swirling Flow in a Cylindrical Annuli by Using PIV Technique

An experimental investigation was performed to study the characteristics of turbulent swirling flow in an axisymmetric annuli. The swirl angle measurements were performed by flow visualization technique using smoke and dye liquid along the test tube. Using the Particle Image Velocimetry method, this study found the time-mean velocity distribution and turbulent intensity with swirl for Re = 20.000. 30.000, 50.000. and 70.000 along longitudinal sections and the results appear to be physically reasonable.

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