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題 名 | Heat Transfer Analysis of Non-Darcian Flow in Local Thermal Non-Equilibrium=在非熱平衡狀態下之非達西流的熱傳分析 |
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作 者 | 游憲一; 宋建勳; | 書刊名 | 中國機械工程學刊 |
卷 期 | 20:1 1999.02[民88.02] |
頁 次 | 頁75-80 |
分類號 | 446.11 |
關鍵詞 | 非熱平衡; 熱傳; 流體; 多孔介質; Heat transfer rate; Non-darcian flow; |
語 文 | 英文(English) |
中文摘要 | 木文以數值方法分析流體通過多孔介質之熱傳速率問題。本文考慮邊界與慣性效 應對流體熱傳之影響,流體與多孔介質之局部非熱平衡狀態亦包含在分析中。分析結果顯示 在多孔介質流之熱平衡狀態假設下,其熱傳速率之預測,相較於非熱平衡狀態者,顯有高估 。熱傳速率與一些重要參數之函數關係,本文皆加以探討, 這些參數為內部紐塞數、雷諾數 、達西數、普蘭道數及熱傳導率比。 |
英文摘要 | The heat transfer rate of fluid flow through the porous medium is numerically studied in the present paper. The effects of solid boundary and inertial force on flow and heat transfer are considered. The local thermal non-equilibrium between fluid and porous medium is included in the analysis. The results showed that the assumption of thermal equilibrium in the porous medium flow will overestimate the prediction of the heat transfer rate as in comparison with the solution for the thermal non-equilibrium case. The dependence of heat transfer rate on several important governing parameters, i.e., internal Nusselt number, Reynolds number, Darcy number, Prandtl number and the conductivity ratio, are studied in this paper. |
本系統中英文摘要資訊取自各篇刊載內容。