Effective Resistance of Gas Flow in Microchannels
Joint Authors
Source
Advances in Mechanical Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-03-14
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The resistance of gas flow in microchannels is higher because of the relatively more importance of interfacial effects at microscale.
We studied the effective resistance of gas from the wall interactions, the ends effect, and the rarefication effect quantitatively using the three-dimensional (3D) direct simulation Monte Carlo (DSMC) method.
The effective resistance is enhanced by the wall interactions, increasing exponentially as the concerned walls distance decreases.
For short microchannels, the ends effects from both inlet and outlet also raise the effective resistance of gas flow in microchannels following a reciprocal exponential relationship with the aspect ratio of length to height.
The gas rarefication strengthens the effective resistance enhancement by either the wall interaction effects or the ends effects.
This work turns a complicated micromechanical problem into simple available formulae for designs and optimization of microengineering.
American Psychological Association (APA)
Shan, Xiao-Dong& Wang, Moran. 2013. Effective Resistance of Gas Flow in Microchannels. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-510768
Modern Language Association (MLA)
Shan, Xiao-Dong& Wang, Moran. Effective Resistance of Gas Flow in Microchannels. Advances in Mechanical Engineering No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-510768
American Medical Association (AMA)
Shan, Xiao-Dong& Wang, Moran. Effective Resistance of Gas Flow in Microchannels. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-510768
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-510768