1k citations · 2.8k across the 54 of their papers we have counts for
7 papers · 1 filter
CFD simulation of the wind field over a terrain with sand fences: Critical spacing for the protected soil area
Izael A. Lima, Eric J. R. Parteli, Yaping Shao +3
Sand fences are often erected to reduce wind speed, prevent aeolian soil erosion, and induce sand deposition and dune formation in areas affected by sand encroachment and desertifi…
A Boundary-Spheropolygon Element Method for Stress Determination and Breakage Modelling of Particles
Yupeng Jiang, Hans J. Herrmann, Fernando Alonso-Marroquin
We present a boundary-spheropolygon element method (BSEM), that combines the boundary integral method (BIM) and the spheropolygon-based discrete element method (SEM). The interacti…
Congestion fronts of diffusing particles
Bastian Burger, Hans J Herrmann
We study two new models of two particle species invading a surface from opposite sides. Collisions of particles of different species lead to the formation of congestion fronts. One…
Self-organization and Nonuniversal Anomalous Scaling in Non-Newtonian Turbulence
H. J. Seybold, H. A. Carmona, H. J. Herrmann +1
We investigate through Direct Numerical Simulations (DNS) the statistical properties of turbulent flows in the inertial subrange for non-Newtonian power-law fluids. The structural…
Elastic backbone defines a new transition in the percolation model
Cesar I. N. Sampaio Filho, José S. Andrade, Hans J. Herrmann +1
The elastic backbone is the set of all shortest paths. We found a new phase transition at above the classical percolation threshold at which the elastic backbone becomes d…
Explicit size distributions of failure cascades redefine systemic risk on finite networks
Rebekka Burkholz, Hans J. Herrmann, Frank Schweitzer
How big is the risk that a few initial failures of nodes in a network amplify to large cascades that span a substantial share of all nodes? Predicting the final cascade size is cri…