Volume 22 Issue 9
Sep.  2007
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Article Navigation >  Journal of Aerospace Power  > 2007  >  22(9): 1405-1411
ZHANG Tian-tian, JIA Li, WU Li-yuan, FENG Wu-jun. Numerical analysis of single-phase gaseous flow characteristics in microchannels[J]. Journal of Aerospace Power, 2007, 22(9): 1405-1411.
Citation: ZHANG Tian-tian, JIA Li, WU Li-yuan, FENG Wu-jun. Numerical analysis of single-phase gaseous flow characteristics in microchannels[J]. Journal of Aerospace Power, 2007, 22(9): 1405-1411.
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Numerical analysis of single-phase gaseous flow characteristics in microchannels

  • 1.

    School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China

  • 2.

    School of Architecture, Tsinghua University, Beijing 100084, China

  • Received Date: 2006-08-14
  • Rev Recd Date: 2006-12-30
  • Publish Date: 2007-09-28
    Abstract
  • The microchannel is an integral part of various micro systems.The flow characteristics of nitrogen in three different microchannels(hydraulic diameter of 30～3000 μm) were numerically investigated with consideration of the effect of compressibility and viscosity heating.The effects of size and Reynolds number(Re) on pressure drop,friction factor and friction constant were investigated.Especially,the priority of the research was placed on the effect of ratio of length,entrance/exit,compressibility and viscosity heating.The calculated results show that transition Re is brought forward to about 1 200 in 300 μm microchannels.

     

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    • References(9)
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