2022年8月12日
Viscous to Inertial Transition in Dense Granular Suspension
Physical Review Letters
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- ,
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- 巻
- 129
- 号
- 7
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevLett.129.078001
Granular suspensions present a transition from a Newtonian rheology in the Stokes limit to a Bagnoldian rheology when inertia is increased. A custom rheometer that can be run in a pressure- or a volume-imposed mode is used to examine this transition in the dense regime close to jamming. By varying systematically the interstitial fluid, shear rate, and packing fraction in volume-imposed measurements, we show that the transition takes place at a Stokes number of 10 independent of the packing fraction. Using pressure-imposed rheometry, we investigate whether the inertial and viscous regimes can be unified as a function of a single dimensionless number based on stress additivity.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevLett.129.078001
- ISSN : 0031-9007
- eISSN : 1079-7114
- PubMed ID : 36018678
- SCOPUS ID : 85136161475