Math @ Duke
Publications [#9745] of John V. Matthews
- Pierre A. Gremaud, John Matthews, On the Computation of Steady Hopper Flows: I, Stress Determination for Coulomb Materials,
J. Comput. Phys., 165, (2000), pp. 1-21
(last updated on 2000/12/18)
The problem of determining steady state flow of granular
materials in silos under the action of gravity is
considered. In the case of a Mohr-Coulomb material, the
stress equations correspond to a system of hyperbolic
conservation laws with source terms and boundary conditions.
A higher order Discontinuous Galerkin method is proposed and
implemented for the numerical resolution of those equations.
The efficiency of the approach is illustrated by the
computation of the stress fields induced in silos with sharp
changes of the wall angle.
Duke University, Box 90320
Durham, NC 27708-0320