Three-dimensional compressible gas flow in microchannnels Conference

Jain, V, Lin, C. (2006). Three-dimensional compressible gas flow in microchannnels . 22 17127-17135.

cited authors

  • Jain, V; Lin, C



  • Compressible gas flow in a long microchannel with square cross section was simulated numerically with a three-dimensional continuum model. The governing equations of the model were solved using a control volume method. A parametric study was conducted for Dh = 1μm, L/Dh ratio of 200 and with varying pressure ratio (PR = 1.5 - 5.0). The gas used was nitrogen. Numerical model was validated with available experimental and numerical results. It was found that as the pressure ratio increased from 1.5 to 5.0, compressibility effects increased while the rarefaction effects started diminishing. The slip effects play an important role in the friction characteristics of microchannel flows. Analytical expressions were evaluated on the basis of flow behavior.

publication date

  • December 1, 2006

International Standard Book Number (ISBN) 10

International Standard Book Number (ISBN) 13

start page

  • 17127

end page

  • 17135


  • 22