A Study on the Characteristics of Natural Convection in a Partially Opened Enclosure with a Heat Source

발열체와 부분 열림 수직벽을 갖는 사각 공간내 자연대류 특성 해석

  • 심동식 (전남대 대학원 기계공학과) ;
  • 강보선 (전남대 자동차공학부) ;
  • 차동진 (대전산업대 건축설비공학과) ;
  • 주원종 (서울산업대 자동화공학과)
  • Published : 2000.04.20

Abstract

Natural convection heat transfer in an enclosure with an opening in the right vertical wall and a heat source at the bottom surface is investigated using a holographic interferometric technique. The effects of the opening length, divider length attached to the top wall, and heater temperature on the temperature distribution are examined. The openging length as well as the divider length greatly affects the degree of inflow and outflow of air. With a small opening, the opening doesn't affect much the upward warm air flow resulting in the symmetric temperature distribution. On the other hand, with the increase of the opening length, the inward cold flow moves the upward flow to the left direction. With the increase of the divider length, temperature in the lower region of enclosure becomes higher for the small opening and lower for the large opening.

Keywords