Experimental Study of Air Flow Characteristics in Micro-Channels

ZHENG Guang-hua; ZHANG Kai>; WEI Wen-qiang>; He Yi-hong

doi:10.3879/j.issn.1000-0887.2014.03.005

Volume 35 Issue 3

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ZHENG Guang-hua, ZHANG Kai>, WEI Wen-qiang>, He Yi-hong. Experimental Study of Air Flow Characteristics in Micro-Channels[J]. Applied Mathematics and Mechanics, 2014, 35(3): 272-277. doi: 10.3879/j.issn.1000-0887.2014.03.005

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Experimental Study of Air Flow Characteristics in Micro-Channels

doi: 10.3879/j.issn.1000-0887.2014.03.005

¹School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072, P.R.China;²China Aviation Powerplant Research Institute, Zhuzhou, Hunan 412002, P.R.China

Received Date: 2013-09-26
Rev Recd Date: 2013-12-22
Publish Date: 2014-03-15

Abstract

Abstract

The flow characteristics in micro-channels with inner diameters of 0.4 mm and 0.5 mm at different pressure ratios were experimentally studied. The resistance coefficients in the micro-channels are 4 to 5 times of those of the conventional channels, and the phenomenon of early transition from laminar flow to turbulence in advance is well explained. The smaller the diameter of a micro-channel is, the greater the flowing pressure loss results.
- micro-channel,
- resistance coefficient,
- flow characteristics,
- early transition

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References(8)

References

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