… The aim of this article is to discuss the concepts of non-localrheology and fluidity, recently introduced to describe densegranularflows. We review and compare various approaches …
… 2 A rheometer to probe non-local effects We have investigated non-local effects in granular flows by means of DEM numerical simulations [22]. The system is two-dimensional and …
K Kamrin - Frontiers in Physics, 2019 - frontiersin.org
… non-localflow phenomena in granular materials and discusses a range of models that have been proposed to integrate an intrinsic length-scale into granularrheology… strongly non-local …
… The numerical results are in quantitative agreement with the predictions of the non-local rheology proposed by the present authors (Phys. Rev. Lett., 111 (2013) 238301) and derived …
… This result suggests that densegranularflows may indeed be described in terms of the local … non-local effects because a local modification of the shear conditions could modify the flow …
CC Lin, FL Yang - Journal of Computational Physics, 2020 - Elsevier
… In this work, we implement the local μ ( I ) rheology law and its non-local modification in a … -dimensional densegranularflows in both steady and transient states. The non-local effect on …
… flow field in incompressible, densegranularflows once the distributions of the stresses are known. Another phenomenological, algebraic relation between the solid volume fraction and …
D Liu, DL Henann - Journal of Fluid Mechanics, 2017 - cambridge.org
… length scale given through d, and hence the rheology is non-local in character. In the present work, we are concerned with densegranularflows that are steady in a Lagrangian sense, …
… The dynamical mechanism at the origin of the non-localrheology of densegranularflows is … in the network of granular contacts. Using a micro-rheology technique, we establish that the …