The role of geometric constraints in random packing of non-spherical particles

Xiaodong Jia, Richard Caulkin, Richard Andrew Williams, Zongyan Zhou, Aibing Yu

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A generic and digitally implemented geometrical packing algorithm is compared with a discrete element method based dynamic packing model, through ten case studies encompassing oblate-to-prolate spheroids, in terms of bulk volume packing fraction, bed height, orientation distribution and mean coordination number. The broad agreement in simulation results points to the conclusion that geometrical constraints play a dominant role over physical contact forces in determining the structure of a random packing and physical contact forces are a means to enforce geometrical constraints.
Original languageEnglish
Pages (from-to)1 - 5
Number of pages5
JournalEPL
Volume92
Issue number6
DOIs
Publication statusPublished - 2010
Externally publishedYes

Cite this

Jia, Xiaodong ; Caulkin, Richard ; Williams, Richard Andrew ; Zhou, Zongyan ; Yu, Aibing. / The role of geometric constraints in random packing of non-spherical particles. In: EPL. 2010 ; Vol. 92, No. 6. pp. 1 - 5.
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The role of geometric constraints in random packing of non-spherical particles. / Jia, Xiaodong; Caulkin, Richard; Williams, Richard Andrew; Zhou, Zongyan; Yu, Aibing.

In: EPL, Vol. 92, No. 6, 2010, p. 1 - 5.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Williams, Richard Andrew

AU - Zhou, Zongyan

AU - Yu, Aibing

PY - 2010

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AB - A generic and digitally implemented geometrical packing algorithm is compared with a discrete element method based dynamic packing model, through ten case studies encompassing oblate-to-prolate spheroids, in terms of bulk volume packing fraction, bed height, orientation distribution and mean coordination number. The broad agreement in simulation results points to the conclusion that geometrical constraints play a dominant role over physical contact forces in determining the structure of a random packing and physical contact forces are a means to enforce geometrical constraints.

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