Abstract
Free surface flows of granular material show features well known from shallow water flow or, more generally, from gas dynamics: traveling or steady state jumps in material depth, depth diminishing waves and formation of zero depth regions. An adaptive Euler code using unstructured grids has been used to simulate supercritical shallow granular flows. The case of supercritical flow past a wedge, in which oblique shocks have been observed in granular materials, was selected to test the computations. The numerical method was verified against the analytical solution of the supercritical shallow water wedge flow case, and is compared to experimental thickness data for shallow granular flow. An excellent agreement with the analytical solution indicates the validity of the method, while a good correlation with the experiments shows correctness of the model.
| Original language | English |
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| Title of host publication | Proceedings of the 22nd International Symposium on Shock Waves: Imperial College, London, U.K. July 18th-23rd, 1999 |
| Volume | 4610 |
| Publication status | Published - 1999 |