The effect of flow rate modulation on low Reynolds number heat transfer enhancement in a transversely grooved passage was numerically simulated using a two-dimensional spectral element technique. Simulations were performed at subcritical Reynolds numbers of and 267, with 20 percent and 40 percent flow rate oscillations. The net pumping power required to modulate the flow was minimized as the forcing frequency approached the predicted natural frequency. However, mixing and heat transfer levels both increased as the natural frequency was approached. Oscillatory forcing in a grooved passage requires two orders of magnitude less pumping power than flat passage systems for the same heat transfer level. Hydrodynamic resonance appears to be an effective method of increasing heat transfer in low Reynolds number systems, especially when pumping power is at a premium.
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e-mail: fischer@mcs.anl.gov
e-mail: tufo@cs.colorado.edu
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Numerical Simulations of Resonant Heat Transfer Augmentation at Low Reynolds Numbers
Miles Greiner, ASME Member, Professor of Mechanical Engineering,,
Miles Greiner, ASME Member, Professor of Mechanical Engineering,
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Paul F. Fischer,
e-mail: fischer@mcs.anl.gov
Paul F. Fischer
Mathematics and Computer Science Division, Argonne National Laboratories
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Henry Tufo, Associate Professor,
e-mail: tufo@cs.colorado.edu
Henry Tufo, Associate Professor,
Department of Computer Science, University of Colorado at Boulder, Boulder, CO 80302
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Miles Greiner, ASME Member, Professor of Mechanical Engineering,
Paul F. Fischer
Mathematics and Computer Science Division, Argonne National Laboratories
e-mail: fischer@mcs.anl.gov
Henry Tufo, Associate Professor,
Department of Computer Science, University of Colorado at Boulder, Boulder, CO 80302
e-mail: tufo@cs.colorado.edu
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division October 22, 2001; revision received August 12, 2002. Associate Editor: M. Faghri.
J. Heat Transfer. Dec 2002, 124(6): 1169-1175 (7 pages)
Published Online: December 3, 2002
Article history
Received:
October 22, 2001
Revised:
August 12, 2002
Online:
December 3, 2002
Citation
Greiner, M., Fischer, P. F., and Tufo, H. (December 3, 2002). "Numerical Simulations of Resonant Heat Transfer Augmentation at Low Reynolds Numbers ." ASME. J. Heat Transfer. December 2002; 124(6): 1169–1175. https://doi.org/10.1115/1.1517273
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