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Gas Circulation Due an Azimuthal Temperature Distribution Over a Micro-Tube Wall

[+] Author Affiliations
Felix Sharipov

Universidade Federal do Paraná, Curitiba, PR, Brazil

Paper No. ICNMM2009-82028, pp. 373-381; 9 pages
  • ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels
  • ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels
  • Pohang, South Korea, June 22–24, 2009
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 978-0-7918-4349-9 | eISBN: 978-0-7918-3850-1
  • Copyright © 2009 by ASME


In many applications, a temperature of fixed cross section of micro-tube is not uniform, but it can deviate from its equilibrium value. In this case the gas flow is not axi-symmetrical any more, but the flow is two dimensional. Under such conditions, the density cannot be considered as uniform across the section and gas circulations can occur. The aim of the present work is numerical calculation of distributions of velocity, density and temperature caused by an azimuthal temperature distribution over the tube wall. The problem is solved on the basis of the kinetic equation over a wide range of the gas rarefaction.

Copyright © 2009 by ASME



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