The importance of the in-flow oscillation of a single cylinder in cross-flow has been spotlighted since an accident in a FBR-type reactor. However, the in-flow oscillation can be observed in tube arrays of heat exchangers. Previous reports show some interesting phenomena on the oscillation of cylinder arrays, which have a same pitch between cylinders. This paper shows the effect of the pitch ratio of a cylinder array on the characteristics of those phenomena, especially in in-flow direction, where every cylinder can move only in this direction. The motion of cylinders is measured by attached strain gages and by a high-speed digital video camera.
A Study on Stream-Wise Oscillation of Cylinder Arrays: Effect of Pitch Ratio
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Nakamura, T, Yoshikawa, T, Yoshimura, T, & Kondo, H. "A Study on Stream-Wise Oscillation of Cylinder Arrays: Effect of Pitch Ratio." Proceedings of the ASME 2009 Pressure Vessels and Piping Conference. Volume 4: Fluid-Structure Interaction. Prague, Czech Republic. July 26–30, 2009. pp. 165-172. ASME. https://doi.org/10.1115/PVP2009-77134
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