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TECHNICAL PAPERS: Porous Media, Particles, and Droplets

An Experimental Study of Heat Transfer of a Porous Channel Subjected to Oscillating Flow

[+] Author and Article Information
H. L. Fu, K. C. Leong, X. Y. Huang, C. Y. Liu

School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore

J. Heat Transfer 123(1), 162-170 (Jul 12, 2000) (9 pages) doi:10.1115/1.1336510 History: Received November 15, 1999; Revised July 12, 2000
Copyright © 2001 by ASME
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References

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Cheng,  P., Hsu,  C. T., and Choudhury,  A., 1988, “Forced Convection in the Entrance Region on a Packed Channel with Asymmetric Heating,” ASME J. Heat Transfer, 110, pp. 946–954.
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Hunt,  M. L., and Tien,  C. L., 1988, “Effects of Thermal Dispersion on Forced Convection in Fibrous Media,” Int. J. Heat Mass Transf., 31, pp. 301–309.
Tong,  T. W., Sharatchandra,  M. C., and Gdoura,  Z., 1993, “Using Porous Inserts to Enhance Heat Transfer in Laminar Fully-Developed Flows,” Int. Commun. Heat Mass Transfer, 20, pp. 761–770.
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Zhao,  T., and Cheng,  P., 1995, “A Numerical Solution of Laminar Forced Convection in a Heated Pipe Subjected to a Reciprocating Flow,” Int. J. Heat Mass Transf., 38, pp. 3011–3022.
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Figures

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Typical variations of velocity and pressure drop of oscillating flow through the test section
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Variation of local Nusselt number along axial direction—oscillating flow: (a) Aluminum 40 PPI; (b) RVC 45 PPI.
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Effects of Reynolds number on local Nusselt number—oscillating flow
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Temperature uniformity for steady and oscillating flows
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Comparison of averaged Nusselt number of steady and oscillating flows
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Length-averaged Nusselt number as a function of parameter k*/kf(De/L)1/2 Pe*1/2
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Comparison of local Nusselt numbers with other experimental data
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The schematic of experimental facility and test section: (a) experimental setup; (b) test section.
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Surface temperature distribution along the flow direction—steady flow: (a) Aluminum 40 PPI; (b) RVC 45 PPI.
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Variation of local Nusselt number along flow direction—steady flow: (a) Aluminum 40 PPI; (b) RVC 45 PPI.
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Effects of Reynolds number on local Nusselt number—steady flow
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Cycle-averaged surface temperature distribution along axial direction—oscillating flow: (a) Aluminum 40 PPI; (b) RVC 45 PPI.

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