期刊論文
| 學年 | 88 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2000-03-01 |
| 作品名稱 | The Analytical and Numerical Solutions for Gaseous Slip Flows in Micro-Channels |
| 作品名稱（其他語言） | 微流道內之滑動氣體流場探討 |
| 著者 | 陳慶祥; Chen, C. S. |
| 單位 | 淡江大學航空太空工程學系 |
| 出版者 | Taipei : Chinese Institute of Chemical Engineers |
| 著錄名稱、卷期、頁數 | Journal of the Chinese Institute of Engineers=中國工程學刊 23(2), pp.229-235 |
| 摘要 | The present work studies analytically as well as numerically gaseous flow in micro-channels. The working fluids are nitrogen and helium. The proposed model assumes the fluid is a continuum, but employs a slip boundary condition on the channel wall. Although slip flow in micro-channels can be investigated by solving numerically the compressible Navier-Stokes equations, as was done previously by several investigators, the hyperbolic-parabolic character of the equations makes it very inefficient. The results of the present work show that they can be predicted accurately by solving the compressible boundary- layer equations. The parabolic character of the boundary-layer equations renders the present method a very efficient and accurate tool in studying slip flows. The results also demonstrate that diffusion is the dominant mechanism in momentum and energy transfers in microchannel flows. The convective terms in the boundary-layer equations can be neglected when compared with the diffusive terms. This reduces the governing equations to a simple parabolic equation which can be solved analytically. Both analytical and numerical solutions compare quite well with experimental data. The slip boundary condition is the result of rarefaction, which is due to the incomplete momentum and energy exchanges between gas molecules and the walls. Our results show that the slip condition has decisive effects on the velocity and mass flow rate of the flow and has to be taken into account. |
| 關鍵字 | 滑動流;微流道;微機電系統 Slip flow;Micro-channel;MEMS |
| 語言 | en |
| ISSN | 0253-3839 |
| 期刊性質 | 國內 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | |
| 國別 | TWN |
| 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/987654321/45984 ) |