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題 名 | Entropy Generation from a Fractal-Like Fin under Crossflow=強制對流下支狀鰭之熵生成 |
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作 者 | 林文煒; 李篤中; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷 期 | 28:1 1997.01[民86.01] |
頁 次 | 頁29-36 |
分類號 | 460.02 |
關鍵詞 | 強制對流; 支狀鰭; Entropy generation; Forced convection; Optimal reynolds number; Fractal-like fin; |
語 文 | 英文(English) |
中文摘要 | 本研究針對收縮和膨脹支狀鰭在強制對流下之鰭效率及熵生成率進行理論探討,鰭效率分析顯示一或二分支數鰭及高雷諾數較為適用;而第二定律分析則建議收縮鰭存在一最佳雷諾數,而膨脹鰭則於有限分支數下存在一最佳雷諾數。本研究提出快速估算最佳雷諾數之方法。 |
英文摘要 | This work had theoretically investigated the fin performance and entropy generation rate of a fractal-like fin under a crossflow. Both contracting and expanding fins were considered. Performacne analysis had recommended a fin with one or two generations of branching and an as high as possible Reynolds number. The second-law analysis, on the other hand, suggested an optimal Reynolds number for all contracting fin, and for expanding fin with a finite generations of subfins. An estimate for the optimal Reynolds number was proposed and compared with the numerical results. |
本系統中英文摘要資訊取自各篇刊載內容。