教師資料查詢 | 類別: 期刊論文 | 教師: 康尚文 KANG SHUNG-WEN (瀏覽個人網頁)

標題:The Friction Characteristics of Gaseous Slip Flow in Microtubes
學年90
學期1
出版(發表)日期2001/09/01
作品名稱The Friction Characteristics of Gaseous Slip Flow in Microtubes
作品名稱(其他語言)微圓管滑動氣體流場摩擦特性之探討
著者陳慶祥; Chen, Ching-shung; 康尚文; Kang, Shung-wen; 郭維仁; Kuo, Wei‐jen
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 24(5), pp.641-647
摘要The present work studies the friction characteristics of gaseous
slip flow in microtubes. The reduced diameter of microtubes has significant
influences on the flow. The degree of influence depends on
the Knudsen number. If the Knudsen number is in the range of 10−3 to
0.1, the fluid can be assumed to be a continuum but a slip boundary
condition at the tube wall has to be employed to account for the incomplete
tangential momentum and energy exchanges between the gas molecules
and the wall. Although slip flow in microtubes can be investigated
by solving numerically the compressible Navier-Stokes equations,
the hyperbolic-parabolic character of the equations makes it very
inefficient. The very large length to diameter ratio of microtube flows
suggests that they can be predicted accurately as well as efficiently 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 confirm
the findings of earlier investigators that the product of f . Re is smaller
for laminar microtube flows than that predicted by the conventional
theory when the flow is in the slip region.
關鍵字滑動流;微流道;微機電系統 Slip flow;Microtube flow;MEMs
語言英文
ISSN0253-3839
期刊性質國內
收錄於SCI;EI
產學合作
通訊作者陳慶祥
審稿制度
國別中華民國
公開徵稿
出版型式紙本
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