3D study of temperature drop behavior of subsonic rarefied gas flow in microchannel

Niraj Shah, Amit Agrawal, Upendra Bhandarkar
2018 Figshare  
3D Numerical study of temperature variation for subsonic rarefied gas flow in a microchannel is carried out using an in-house MPI-based parallelized DSMC code. The temperature drop in the microchannel decreases with an increase in the aspect ratio whereas it increases with an increase in the pressure ratio, the cross-aspect ratio (CAR), and the Knudsen number. 3D and 2D simulations results are compared and effect of the CAR and Knudsen number are brought out. Finally, a correlation that
more » ... lation that predicts the temperature drop is formulated along with a list of conditions that ensures a near isothermal flow.
doi:10.6084/m9.figshare.6399878 fatcat:zzifvg66gvf6dnrkcmpiiuafwq