UNSTEADY FLOWS IN MICROCHANNELS - FREQUEN CY-RESPONSE OF PNEUMATIC MICROTUBES

Authors
CAEN R MAS I COLIN S
Citation
R. Caen et al., UNSTEADY FLOWS IN MICROCHANNELS - FREQUEN CY-RESPONSE OF PNEUMATIC MICROTUBES, Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie, 323(12), 1996, pp. 805-812
Citations number
6
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie → ACNP
ISSN journal
12518069
Volume
323
Issue
12
Year of publication
1996
Pages
805 - 812
Database
ISI
SICI code
1251-8069(1996)323:12<805:UFIM-F>2.0.ZU;2-Y
Abstract
This account presents the theoretical evidence concerning the role of microtube diameter in the longitudinal transmission of pressure distur bances in a gaseous medium. The modelling is based on a Navier-Stokes type equation combined with Maxwell-Smoluchowski first-order slip cond itions. The results given relate to velocity variations in a given sec tion and to the frequency response of the microtube as a function of t he Knudsen number. Taking into account slip at the wall appears notabl y to increase the band pass of the pneumatic line.