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arXiv · 1504.00871

Granular flow over inclined channels with linear contraction

D. R. Tunuguntla·T. Weinhart·A. R. Thornton·O. Bokhove
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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.

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BibTeXRIS

D. R. Tunuguntla, T. Weinhart, A. R. Thornton, O. Bokhove. 2015-04-03. Granular flow over inclined channels with linear contraction. https://arxiv.org/abs/1504.00871

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