Cross-talk between phase separation and global convection of granular materials

2016 Fiscal Year Final Research Report

• Project/Area Number: 26800201
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: Kyushu University (2015-2016); Chiba University (2014)
• Principal Investigator: Inagaki Shio 九州大学, 理学研究院, 准教授 (20452261)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 非平衡・非線形物理 / 非平衡散逸系 / 粉粒体物理学

Outline of Final Research Achievements

It is well known that granular materials which is composed of several species tend to segregate when they are under mechanical agitation, such as shaking, flowing, and tapping as if phase separation occurs in oil/water mixutre. In this project, we experimentally studied segregation dynamics of granular materials in a rotating cylinder. We found several new spatio-temporal dynamics of segregation and proposed a phenomenological model. Numerical simulations were also carried out to investigate internal granular flow of granular media in a rotating cylinder.

Free Research Field

粉粒体物理