Comparison of mixing properties in convection with the particle-line method

Arkady A. Ten, Yuri Yu Podladchikov, David A Yuen, Tine B. Larsen, Andrei V. Malevsky

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21 Scopus citations

Abstract

Spatial resolution in mixing processes is an acute problem. We propose a line method, akin to the contour dynamics technique, which is an extension of the particle method but with the particles redistributed on the line with time. We have used up to 105 particles per line and ten lines to investigate the dynamical and structural properties of mixing for both Newtonian and non-Newtonian temperature-dependent viscosity convection in 2D geometry. The spatial structures and the time history of the lines formed in Newtonian convection are different from those produced in non-Newtonian convection, which has the tendency for producing long-living horizontal structures. Efficient mixing in the upper mantle would be inhibited by non-Newtonian rheology.

Original languageEnglish (US)
Pages (from-to)3205-3208
Number of pages4
JournalGeophysical Research Letters
Volume25
Issue number16
DOIs
StatePublished - Aug 15 1998

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