Park, H. G. and Gharib, Morteza (2001) Experimental Study of Heat Convection From Stationary and Oscillating Circular Cylinder in Cross Flow. Journal of Heat Transfer, 123 (1). pp. 51-62. ISSN 0022-1481. doi:10.1115/1.1338137. https://resolver.caltech.edu/CaltechAUTHORS:20130911-135430530
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Abstract
An experimental study is made on the processes of heat transfer from the surface of a forced oscillating cylinder in a crossflow. A range of oscillation amplitude (A/D =0.1,0.2), forced oscillation frequency (0<St_c<1), and Reynolds number (Re=550, 1100, 3500) is covered in water (Pr=6). Besides the increase at the natural vortex shedding frequency, large increases in the heat transfer are found at certain superharmonics. By using Digital Particle Image Velocimetry/Thermometry (DPIV/T), the increase in the heat transfer rate is found to correlate inversely with the distance at which vortices roll-up behind the cylinder, i.e., the distance decreases when the heat transfer increases. The cause of the increase is found to be the removal of the stagnant and low heat convecting fluid at the base of the cylinder during the roll-up of the vortices.
| Item Type: | Article | |||||||||
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| Additional Information: | © 2001 by ASME. Contributed by the Heat Transfer Division for publication in the Journal of Heat Transfer. Manuscript received by the Heat Transfer Division January 3, 2000; revision received, May 17, 2000. Associate Editor: Bau. We thank David Jeon and Dr. Flavio Noca for their generous help. This research was supported by NSF Grant CTS-9418973. | |||||||||
| Group: | GALCIT | |||||||||
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| Subject Keywords: | Convection, Cooling, Cylinder, Enhancement, Entrainment, Experimental, Fluids, Forced Convection, Heat Transfer, Heat Exchangers, Image Processing, Nonintrusive Diagnostics, Recirculating, Separated, Surface, Temperature, Thermal, Unsteady, Vibrating, Vortex, Wakes | |||||||||
| Issue or Number: | 1 | |||||||||
| DOI: | 10.1115/1.1338137 | |||||||||
| Record Number: | CaltechAUTHORS:20130911-135430530 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20130911-135430530 | |||||||||
| Official Citation: | Park HG, Gharib M. Experimental Study of Heat Convection From Stationary and Oscillating Circular Cylinder in Cross Flow. J. Heat Transfer. 2000;123(1):51-62. doi:10.1115/1.1338137 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 41254 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 11 Sep 2013 21:34 | |||||||||
| Last Modified: | 10 Nov 2021 04:27 |
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