Numerical Analysis of Separation and Mixing Dynamics in Multiphase Granular Systems

David M. Walker, N Petford, A Tordesillas, T Rushmer

Research output: Chapter in Book/Conference paperConference paperpeer-review

1 Citation (Scopus)

Abstract

Differentiation is the separation of a fluid phase from its host. Metal-silicate differentiation is the fundamental mechanism by which the terrestrial planets have formed from undifferentiated planetary materials and how economic
elements can be concentrated in the Earth’s crust. This study uses the observed experimental granular rock textures as templates so numerical modeling can quantify flow processes and deformation regimes. To further the modeling, we have developed an innovative approach that combines experimental textures with silicate melt present with Complex Network Analyses. We have extracted unambiguous mixing patterns in the metal-silicate melt system to help determine under what conditions liquid metal and silicate melt tend to separate. This approach can elucidate and quantify the growth of metallic blebs in regions where a silicate mush matrix is present and help predict separation. We apply these results to core formation scenarios in the early solar system in growing planetesimals
Original languageEnglish
Title of host publicationPowders and Grains 2013
Subtitle of host publicationProceedings of the 7th International Conference on Micromechanics of Granular Media
Place of PublicationNew York
PublisherAmerican Institute of Physics
Pages751-754
Number of pages4
Volume1542
ISBN (Print)97807354111661
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event7th International Conference on Micromechanics of Granular Media - Sydney, Australia
Duration: 8 Jul 201312 Jul 2013

Conference

Conference7th International Conference on Micromechanics of Granular Media
Country/TerritoryAustralia
CitySydney
Period8/07/1312/07/13

Fingerprint

Dive into the research topics of 'Numerical Analysis of Separation and Mixing Dynamics in Multiphase Granular Systems'. Together they form a unique fingerprint.

Cite this