教師資料查詢 | 類別: 會議論文 | 教師: 葉豐輝 YEH FUNG-HUEI (瀏覽個人網頁)

標題:Force convection heat transfer spirally grooved flow
學年79
學期1
發表日期1990/12/14
作品名稱Force convection heat transfer spirally grooved flow
作品名稱(其他語言)
著者Huang, Yuan-Hsiung; Yeh, Fung-Huei
作品所屬單位淡江大學機械與機電工程學系
出版者臺北市 : 中華民國力學學會
會議名稱中華民國力學學會第十四屆全國力學會議=The 14th National Conference on Theoretical and Applied Mechanics
會議地點中壢市, 臺灣
摘要The purpose of this study was to obtain a correlation for a proposed solar concentrating collector element, which could be used for design of a large-scale collector. A mathematical model was developed to predict the velocity and temperature fields in a spirally grooved flow passage. The curvature produced a secondary flow and caused departures from the symmetric velocity profile. The analysis considered heat transfer in the developing and fully developed regions through the collector element. The experimental heat transfer values were compared with those values from the mathematical analysis. The numerical study of fully developed laminar flow in a spirally square groove gave satisfactory results for heat-transfer values in fully developed temperature field under the condition of uniform heat flux (on heated wall). The Nusselt number for a curved pipe flow was obtained as a function of Dean number De=Re(a/R)/sup (1/2)/. As the Dean number values increased, the heat-transfer coefficient and Nusselt number increased. The experimental study was carried out for water flow in a curved square groove. The outlet mean and wall temperatures were measured and the local Nusselt number values were obtained.
關鍵字強制對流;螺旋槽流;二次流;熱傳遞;全展溫度場;紐塞數(Nusselt數);太陽能蒐集器;Forced Convection;Spirally Grooved Flow;Secondary Flow;Heat Transfer;Fully Developed Temperature Field;Nusselt Number;Solar Collector
語言英文
收錄於
會議性質國內
校內研討會地點
研討會時間19901214~19901215
通訊作者
國別中華民國
公開徵稿
出版型式
出處中華民國力學學會第十四屆全國力學會議論文集(二)=Proceedings of the 14th National Conference on Theoretical and Applied Mechanics (II), pp.511-1519
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