Simple interaction model for partiallywet granular materials

Namiko Mitarai, Hiizu Nakanishi

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

2 被引用数 (Scopus)

抄録

It is well known that just adding some liquid to dry granular materials changes their behaviors very much. Liquid forms bridges between grains, and the bridge induces cohesion between grains due to the surface tension. When the liquid content is small, the liquid forms a bridge at each contact point (the pendular state), which induces two-body cohesive force. As the liquid content increases, some liquid bridges merge, and more than two grains interact through a single liquid cluster (the funicular state).We propose a simple phenomenological model for wet granular media to take into account many particle interaction through a liquid cluster in the funicular state as well as two-body cohesive force by a liquid bridge in the pendular state. In our model, the cohesive force acts among the grains connected by a liquid-gas interface. As the liquid content is increased, the number of grains that interact through the liquid increase, but the liquid-gas interface may decrease when liquid clusters are formed. Due to this competition, the shear stress shows a maximum as a function of the liquid-content.

本文言語英語
ホスト出版物のタイトルIUTAM-ISIMM Symposium on Mathematical Modeling and Physical Instances of Granular Flows
ページ214-220
ページ数7
1227
DOI
出版ステータス出版済み - 7月 20 2010
イベントJoint IUTAM-ISIMM Symposium on Mathematical Modeling and Physical Instances of Granular Flows - Reggio Calabria, イタリア
継続期間: 9月 14 20099月 18 2009

その他

その他Joint IUTAM-ISIMM Symposium on Mathematical Modeling and Physical Instances of Granular Flows
国/地域イタリア
CityReggio Calabria
Period9/14/099/18/09

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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