Granular flow over inclined channels with linear contraction
Geophysics
2015-04-20 v2 Computational Physics
Fluid Dynamics
Abstract
We consider dry granular flow down an inclined chute with a localised contraction theoretically and numerically. The flow regimes are predicted through a novel extended one-dimensional hydraulic theory. A discrete particle method validated empirical constitutive law is used to close this one-dimensional asymptotic model. The one-dimensional model is verified by solving the two-dimensional shallow granular equations through discontinuous Galerkin finite element method (DGFEM). For supercritical flows, the one-dimensional asymptotic theory surprisingly holds although the two-dimensional oblique granular jumps largely vary across the converging channel.
Cite
@article{arxiv.1504.00871,
title = {Granular flow over inclined channels with linear contraction},
author = {D. R. Tunuguntla and T. Weinhart and A. R. Thornton and O. Bokhove},
journal= {arXiv preprint arXiv:1504.00871},
year = {2015}
}
Comments
This paper has been withdrawn by the author due to errors in the manuscript