Volume 23 Issue 5
May  2008
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ZOU Jiang, PENG Xiao-feng, YAN Wei-mou. Thermal performance of staggered mini-duct heat sinks[J]. Journal of Aerospace Power, 2008, 23(5): 845-850.
Citation: ZOU Jiang, PENG Xiao-feng, YAN Wei-mou. Thermal performance of staggered mini-duct heat sinks[J]. Journal of Aerospace Power, 2008, 23(5): 845-850.
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Thermal performance of staggered mini-duct heat sinks

  • 1.

    Laboratory of Phasechange and Interfacial Transport Phenomena, Tsinghua University, Beijing 100084, China

  • 2.

    Department of Mechatronic Engineering, Huafan University, Taipei 223, Taiwan, China

  • Received Date: 2007-04-25
  • Rev Recd Date: 2007-07-02
  • Publish Date: 2008-05-28
    Abstract
  • Experimental investigation was conducted to study the thermal performance and thermal resistance factor of staggered mini-duct heat sinks.With Reynolds number increasing,the performance of both staggered ducts and straight ducts are improved,and the former is more evident and significant.The thermal resistance factor has an exponential relation with Re;and at the same Re,the factor of staggered ducts is about 18% lower than that of straight ducts.The temperature profile of heat sink bottom is distinctly non-uniform,mainly caused by the fluid temperature rise along the flow,and it fluctuates spatially and temporally.The flow in staggered ducts would lose its stability at about Re 700,much lower than normal cases.

     

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