Experiments have been conducted to study the heat transfer of a porous channel subjected to oscillating flow. The surface temperature distributions for both steady and oscillating flows were measured. The local and length-averaged Nusselt numbers were analyzed. The experimental results revealed that the surface temperature distribution for oscillating flow is more uniform than that for steady flow. Due to the reversing flow direction, there are two thermal entrance regions for oscillating flow. The length-averaged Nusselt number for oscillating flow is higher than that for steady flow. The length-averaged Nusselt number for both steady and oscillating flows increase linearly with a dimensionless grouping parameter The porous channel heat sink subjected to oscillating flow can be considered as an effective method for cooling high-speed electronic devices.
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An Experimental Study of Heat Transfer of a Porous Channel Subjected to Oscillating Flow
H. L. Fu,
H. L. Fu
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
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K. C. Leong,
e-mail: mkcleong@ntu.edu.sg
K. C. Leong
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
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X. Y. Huang,
X. Y. Huang
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
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C. Y. Liu
C. Y. Liu
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
Search for other works by this author on:
H. L. Fu
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
K. C. Leong
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
e-mail: mkcleong@ntu.edu.sg
X. Y. Huang
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
C. Y. Liu
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division November 15, 1999; revision received, July 12, 2000. Associate Editor: C. Beckermann.
J. Heat Transfer. Feb 2001, 123(1): 162-170 (9 pages)
Published Online: July 12, 2000
Article history
Received:
November 15, 1999
Revised:
July 12, 2000
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Citation
Fu, H. L., Leong, K. C., Huang , X. Y., and Liu, C. Y. (July 12, 2000). "An Experimental Study of Heat Transfer of a Porous Channel Subjected to Oscillating Flow ." ASME. J. Heat Transfer. February 2001; 123(1): 162–170. https://doi.org/10.1115/1.1336510
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