DOI QR코드

DOI QR Code

직사각형단면을 갖는 $180^{\circ}$곡관에서의 강제 대류 열전달 특성에 관한 실험적 연구

An Experimental Study on Forced Convective Heat Transfer in a Rectangular Duct with $180^{\circ}$ Bend

  • 문찬 (순천대학교 기계공학과) ;
  • 이건휘 (고려대학교 기계공학과 대학원) ;
  • 최영돈 (고려대학교 기게공학과)
  • 발행 : 1992.02.01

초록

An experimental study has been performed to investigate the characteristics of forced convective heat transfer in a rectangular duct with a 180.deg. bend. The Nusselt number of outer wall has maximum value near 105.deg. at which secondary flow is most active and the Nusselt number of inner wall has maximum value near the inlet of a duct. Near the outlet of a duct, the Nusselt number of outer wall decreases, the Nusselt number of inner wall increases and so those access each other through the influence of a straight duct attached to the end of a duct with a 180.deg. bend. Results of this experimental study would be the fundamental data when streamline curvature correction models are developed in the numerical study for forced convective heat transfer in a curved duct.

키워드