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. 2020 Sep;102(3-1):032602.
doi: 10.1103/PhysRevE.102.032602.

Integration through transients approach to the μ(I) rheology

O Coquand  1 , M Sperl  1   2 , W T Kranz  1   2
Affiliations

Integration through transients approach to the μ(I) rheology

O Coquand et al. Phys Rev E. 2020 Sep.

Abstract

This work generalizes the granular integration through transients formalism introduced by Kranz et al. [Phys. Rev. Lett. 121, 148002 (2018)10.1103/PhysRevLett.121.148002] to the determination of the pressure. We focus on the Bagnold regime and provide theoretical support to the empirical μ(I) rheology laws that have been successfully applied in many granular flow problems. In particular, we confirm that the interparticle friction is irrelevant in the regime where the μ(I) laws apply.

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