The importance of the in-flow oscillation of a single cylinder in cross-flow has been highlighted since an accident in a FBR-type reactor. In-flow oscillations have also been observed in tube arrays. This report is an experimental study on this phenomenon using totally nine cylinders in a water tunnel. Six cases, one single cylinder, two & three cylinders in parallel & in tandem, and a nine cylinder bundle, are examined. Every cylinder can move only in in-flow direction. The motion of cylinders is measured by the strain gages and by a high-speed digital video camera. The results are compared with the visualized vortex motion.
In-Flow Oscillation of Circular Cylinders in Cross-Flow
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Nakamura, T, Haruguchi, H, Nakajima, H, Sawada, T, & Sugiyama, K. "In-Flow Oscillation of Circular Cylinders in Cross-Flow." Proceedings of the ASME 2007 Pressure Vessels and Piping Conference. Volume 4: Fluid-Structure Interaction. San Antonio, Texas, USA. July 22–26, 2007. pp. 301-309. ASME. https://doi.org/10.1115/PVP2007-26103
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