Extended instability criteria in isotropic and anisotropic energy avalanches

摘要: Abstract We demonstrate that adding extended instability criteria to 3D critical-slope sand-pile models has the effect of considerably enhancing self-organized critical state displayed by these models. present two models, an isotropic one which displays large energy-avalanches, and anisotropic shows much shorter more frequent energy bursts. illuminate multifractal nature self-organised in both finding a nontrivial spectrum generalised correlation dimensions from time series showing power-law regions distributions functions for different lattice sizes show scaling behaviour is ruled transformation.