This paper presents the results of an experimental study of the effect of streamwise “platen” fins on the fluidelastic instability of an in-line tube array. The fins are fixed parallel to the axis of the tubes in the streamwise direction and effectively prevent any transverse flow between streamwise tube rows. A geometrically identical, dynamically scaled bundle of finless tubes were used as a datum case for comparison. The results showed that, while the fins eliminate vortex shedding, they enhance the fluidelastic coupling between adjacent tubes and substantially reduce the stability threshold.
The Effect of Platen Fins on the Flow-Induced Vibrations of an In-Line Tube Array
Contributed by the Pressure Vessels and Piping Division and presented at the Pressure Vessels and Piping Conference, Atlanta, Georgia, July 22–26, 2001, of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS. Manuscript received by the PVP Division, March 29, 2001; revised manuscript received July 10, 2001. Associate Editor: M. J. Pettigrew.
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Weaver, D. S., Ziada , S., Sun , Z., and Feenstra, P. (July 10, 2001). "The Effect of Platen Fins on the Flow-Induced Vibrations of an In-Line Tube Array ." ASME. J. Pressure Vessel Technol. November 2001; 123(4): 437–441. https://doi.org/10.1115/1.1408303
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