期刊論文
| 學年 | 98 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2010-02-01 |
| 作品名稱 | Flow Characteristics of Three-Dimensional Microscale Backward-Facing Step Flows |
| 作品名稱（其他語言） | |
| 著者 | Hsieh, Tes-Yang; Hong, Zuu-Chang; Pan, Ying-Che |
| 單位 | 淡江大學機械與機電工程學系 |
| 出版者 | Philadelphia: Taylor & Francis Inc. |
| 著錄名稱、卷期、頁數 | Numerical Heat Transfer, Part A: Applications 57(5), pp.331-345 |
| 摘要 | The flow in three-dimensional (3-D) microscale backward-facing step is investigated using the direct simulation Monte Carlo method. To ensure the rationality of two-dimensional (2-D) simplification for a 3-D structure, the flow characteristics of the 3-D microscale backward-facing step flows with various cross-section aspect ratios are compared with those of 2-D simplification. When the cross-section aspect ratio of 3-D flow cases is greater than 5, the approaching level of 3-D flows to 2-D simplification is over 98% for the nitrogen flow with inlet Knudsen number (Kn) of 0.04. Moreover, it is found that the approaching level decreases as Kn increases. The dependence between the vortex stability and the cross-section aspect ratio is studied. It is found that the flow separation, recirculation, and reattachment will disappear as the cross-section aspect ratio is less than 1 for flows with inlet Kn of 0.04. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 1040-7782; 1521-0634 |
| 期刊性質 | |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | Hsieh, Tes-Yang |
| 審稿制度 | |
| 國別 | USA 國外 |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/65311 ) |