Dr. Volkhard Buchholtz


Diploma student, graduate student


Logos Verlag Berlin, Germany


Molecular dynamics of comminution in ball mills

European Physical Journal B 16, 169–182



Molekulardynamische Untersuchung von Zerkleinerungsprozessen in Kugelmühlen

Schüttgut 6, 11-24



Interaction of a granular stream with an obstacle

Granular Matter 1, 33-41



Adaptive evolutionary optimization of team work

International Journal of Bifurcation and Chaos 7, 751-757



Force Distribution and Comminution in Ball Mills

Friction, Arching, Contact Dynamics: Proceedings of the Workshop, HLRZ, Forschungszentrum Jülich, Germany, 28-30 October 1996 (Wolf, D. E. and Grassberger, P.), 265-273. Singapore: World Scientific.



Swirling granular matter: from rotation to reptation

Physical Review E 54, R4560(R)



Avalanche statistics of sand heaps

Journal of Statistical Physics 84, 1373-1378



Complex flow of granular material in a rotating cylinder

Chaos, Solitons & Fractals 5, 1901-1905, 1907-1912



Simulation of rotating drum experiments using non-circular particles

Physica A 216, 199-212



Molecular dynamics of arbitrarily shaped granular particles

Journal de Physique I France 5, 1431-1455



Numerical investigations of the evolution of sandpiles

Physica A 202, 390-401



Numerical investigation of the evolution of sandpiles

Physica A, 202, 390-401


Research Projects

The evolution of a pile of granular material is investigated by molecular dynamics using a new model including nonsphericity of the particles instead of introducing static friction terms. The angle of repose of the piles as well as the avalanche statistics gathered by the simulation agree with experimental results. The angle of repose of the pile is determined by the shape of the grains. Our results are compared with simulations using spherical grains and static friction.


A vectorized algorithm for molecular dynamics of short range interacting particles

International Journal of Modern Physics C 4, 1049-1057



Static friction phenomena in granular materials: Coulomb law versus particle geometry

Physical Review Letters 71, 3963-3966