The study of mixed convection in a rectangular enclosure for indoor air control

실내공기 제어를 위한 사각공간내의 혼합대류에 관한 연구

  • 이철재 (경동전문대학, 건축설비과) ;
  • 정한식 (경상대학교 수산대학 선박기계공학과) ;
  • 권순석 (동아대학교 공과대학 기계공학과)
  • Published : 1996.11.01

Abstract

The numerical and experimental studies on the mixed convection of a rectangular enclosure for indoor air control has been studied numerically using the finite volume method and experimentally with holographic interferometry and Laser apparatus. The parameters studied here are Pr= 0.71, $30{\leq}Re{\leq}600$, $700{\leq}Gr{\leq}100000$ and the positions of an outlet. The results show streamlines, isothrems, velocity distributions and photograph of holographic interferometry and streamlines. It is found that the minimum cell occurs at Re=100, Gr=10000. The mean Nusselt numbers can be expressed by the correlation equation $Nu=C{\cdot}Gr^a$ $Re^b.$ The comparison of numerical and experimental results shows a good agreement.

Keywords

References

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