Direct Numerical Simulation of Low-Density Atmospheric Flow on Io
Abstract
We explore the effects of a non-condensible gas on the SO2
atmospheric flow near volcanic plumes and sublimating frost patches on
Io. The flows involve rarefied/continuum transition, compressibility,
gas mixtures, and radiation. Preliminary results are presented which
show that a non-condensible gas can either limit or enhance the
tranport of SO2 away from a local source. Such analysis is of
importance for determining the distribution of gases near the
surface and, hence, the flux of atmosphere into space. The Direct
Simulation Monte Carlo (DSMC) method is used.
Last revised: July 22, 1996