Transactions of the Korean Society of Mechanical Engineers (대한기계학회논문집)
- Volume 16 Issue 11
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- Pages.2181-2188
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- 1992
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- 1225-5963(pISSN)
DOI QR Code
Effect of Aspect Ratio and Inclination on Natural Convection in Circular Trapezoidal Cavities
부채형 공간내의 자연대류에 대한 간격비와 경사각의 영향
Abstract
Two-dimensional natural convection within a circular trapezoidal cavity with parallel cylindrical top and bottom walls at different temperatures and two adiabatic side walls has been solved by finite-difference methods. This study has been conducted to evaluate the effects of aspect ratio and inclination in the natural convection for various Rayleigh numbers. The minimum average Nusselt number occurs at the point of transition from a conductive heat transfer to a convective heat transfer. Numerical results are compared to experimental results with qualitatively good agreement.
본 연구에서는 크기가 45˚인 부채형 공간내의 자연대류 열전달 특성을 고찰 하기 위하여 간격비, 경사각 그리고 Rayleigh 수를 변수로 하여 유한 차분법으로 수치 해석 하고, 대료적인 간격비 L/r