Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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NUMERICAL STUDY OF TRANSIENT CONJUGATE HEAT TRANSFER IN A MICRO-CHANNEL SUBSTRATE

마이크로채널 기판에서 비정상 복합 열전달의 수치적 연구

  • Lee, H.J. (Dept. of Mechanical Systems Engineering, Kookmin Univ.)
  • 이희준 (국민대학교 기계시스템공학부)
  • Received : 2012.10.08
  • Accepted : 2012.10.26
  • Published : 2012.12.31
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Abstract

A numerical study of transient conjugate heat transfer on micro heater in a micro-channel substrate under pulsed heating was conducted. It was found that the time constant is not affected by the pulse heating magnitude at same operating condition. Furthermore, the time constant increases with low substrate thermal diffusivity, low Reynolds number, and large channel diameter. Since the time constant is a dominant parameter to characterize transient heat transfer, it should be considered for transient convective heat transfer coefficient.

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References

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