대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제9권4호
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- Pages.430-439
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- 1985
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- 1225-5963(pISSN)
DOI QR Code
水平 同心圓二重 環狀密閉 空間에서의 Conjugate 自然對流 熱傳達
Conjugate Natural Convection in Double Enclosed Annuli Between Horizontal Concentric Cylinders
- 발행 : 1985.07.01
초록
본 연구에서는 유한차분법을 사용하여 지배방정식의 수치해를 구하였으며, 특 히 유체와 고체 사이의 접촉면조건에서 correlation인자를 도입하여 K/
Conjugate natural convection in double enclosed annuli between horizontal concentric cylinders has been studied by the numerical analysis and experimental measurements. The interface conditions between the liquid and the solid of middle shell are obtained through the correlation factor based on the ratio of solid to fluid thermal conductivities and the Prandtl number. The characteristics of conjugate heat transfer are discussed under various dimensionless parameters such as conductivity ratios, shell thickness, diameter ratios, Prandtl number, and Rayleigh number. It is found that the average equivalent conductivity K over var