This is an experimental investigation of the effects of forced transverse vibrations on the local heat transfer characteristics of a heated, pinned-pinned beam. In particular, the response of a cylindrical beam near its first two natural frequencies, corresponding to the first two vibration modes, is considered. The results show that there is a strong spatial variation in the local Nusselt number and that these variations are closely related to the mode shape of the response. Because the heat transfer measurements were taken at the resonance frequencies, where the structural response was greatest, the measured Nusselt numbers provide an upper bound for the increased convection due to flexible body vibrations, i.e., in the absence of any rigid-body mode. The possibility of large-amplitude nonlinear vibrations are discussed (though they were not witnessed experimentally) in a theoretical framework. [S0022-1481(00)01702-3]
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Modal Effects on the Local Heat Transfer Characteristics of a Vibrating Body
K. D. Murphy,
K. D. Murphy
Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269-3139
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T. A. Lambert,, Jr.
T. A. Lambert,, Jr.
Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269-3139
Search for other works by this author on:
K. D. Murphy
Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269-3139
T. A. Lambert,, Jr.
Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269-3139
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division, Jan. 21, 1999; revision received June 25, 1999. Associate Technical Editor: C. Beckerman.
J. Heat Transfer. May 2000, 122(2): 233-239 (7 pages)
Published Online: June 25, 1999
Article history
Received:
January 21, 1999
Revised:
June 25, 1999
Citation
Murphy , K. D., and Lambert, , T. A., Jr. (June 25, 1999). "Modal Effects on the Local Heat Transfer Characteristics of a Vibrating Body ." ASME. J. Heat Transfer. May 2000; 122(2): 233–239. https://doi.org/10.1115/1.521462
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