Many shell-and-tube heat exchangers operate in two-phase flows. This paper presents the results of a series of experiments done on tube bundles of different geometries subjected to two-phase cross flow simulated by air-water mixtures. Normal (30 deg) and rotated (60 deg) triangular, and normal (90 deg) and rotated (45 deg) square tube bundle configurations of pitch-to-diameter ratio of 1.2 to 1.5 were tested over a range of mass fluxes from 0 to 1000 kg/(m2s) and void fraction from 0 to 100 percent. The effects of tube bundle geometry on vibration excitation mechanisms such as fluidelastic instability and random turbulence, and on dynamic parameters such as damping and hydrodynamic mass are discussed.
The Effects of Bundle Geometry on Heat Exchanger Tube Vibration in Two-Phase Cross Flow
Contributed by the Pressure Vessels and Piping Division and presented at the 7th International Conference on Fluid-Induced Vibration, Lucerne, Switzerland, June 19–22, 2000. Manuscript received by the PVP Division, March 13, 2000; revised manuscript received May 22, 2001. Editor: S. Y. Zamrik.
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Pettigrew, M. J., Taylor, C. E., and Kim, B. S. (May 22, 2001). "The Effects of Bundle Geometry on Heat Exchanger Tube Vibration in Two-Phase Cross Flow ." ASME. J. Pressure Vessel Technol. November 2001; 123(4): 414–420. https://doi.org/10.1115/1.1388236
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