• 作者： Lin, W.W.; Lee, D.J.
• 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. Performance 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.
• 中文關鍵字： 熵; 碎形; 對流; 收縮; 膨脹; 雷諾數
• 英文關鍵字： Entropy; Fractal; Cross-Flow; Contraction; Expand; Reynolds Number