On the numerical simulation of dust devil-like vortices in terrestrial and Martian convective boundary layers

Details On the numerical simulation of dust devil-like vortices in terrestrial and Martian convective boundary layers On the numerical simulation of dust devil-like vortices in terrestrial and Martian convective boundary layers

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3319s05k&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 19, CiteID L19S05

Physics

5

Atmospheric Processes: Turbulence (4490), Atmospheric Processes: General Or Miscellaneous, Atmospheric Processes: Global Climate Models (1626, 4928), Atmospheric Processes: Convective Processes, Atmospheric Processes: Boundary Layer Processes

Scientific paper

This paper presents an overview of the numerical simulation studies to date, of vertical vortices, or dust devil-like vortices, which arise in atmospheric convective boundary layers (CBLs). The similarities and differences between these studies are highlighted. In addition, the accuracy of the simulated vortices as compared with observed physical characteristics is discussed. It is notable that vertical vortices formed in all of the studies considered for both Mars and Earth simulations, despite the fact that they have not often been pointed out in laboratory and numerical simulations of CBLs. A possible implication of this finding is that non-visible vertical vortices may even be ubiquitous and thus may play an important role in boundary layer transports. If this is so, they may have implications for pollution and hazardous waste transports, as well as on impacts on descent and landing of spacecraft on Mars.

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