The pressure distribution under heaps has found to be dependent on the builing hostory of the heap both in experiments and simulations. Up to now, theoretical models and analysis assume that the packing of the heap is homogeneous. We show new experimental and simulational results which indicate that the packing is inhomogeneous and that this packing property is likley causing the pressure minimum under the heap.
Keiko M. Aoki
Proceedings of RIMS Symposium on Mathematical Apsects of Complex Fluids II, RIMS Kokyoroku series 1188, p.123