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단열벽(斷熱壁)에 부착(附着)된 등온사각(等溫四角)비임에서의 자연대류(自然對流) 열전달(熱傳達)
이철재,박재림,권순석,Lee, C.J.,Park, J.L.,Kwon, S.S. 대한설비공학회 1988 설비저널 Vol.17 No.1
Steady laminar natural convection heat transfer from an isothermal square beam with adiabatic wall has been studied for various inclination angles of the wall and Rayleigh numbers by using Mach-Zehnder Interferometer in air. The different temperature and fluid fields were obtained as the inclination angle changes showing the effects of the ascending heated fluid and the adiabatic wall. The maximum total mean Nusselt number was found at ${\theta}=45^{\circ}$.
배태열,정한식,박재림,김시범,권순석 동아대학교 공과대학 부설 한국자원개발연구소 1994 硏究報告 Vol.18 No.2
Natural convection within a wedge-shaped enclosure has been studied by using finite different method. Radial surfaces of the wedge are isothermally hot and cold walls while circumferential surfaces are insulated walls. The Rayleigh numbers change from 10³ to 10^(5). The results show isotherms, streamlines and velocity profiles as well as heat transfer correlations. There is a wedge angle, which minimizes the mean Nusselt number.