81 citations · 795 across the 30 of their papers we have counts for
9 papers · 1 filter
Unified Flow Rule of Undeveloped and Fully Developed Dense Granular Flows Down Rough Inclines
Yanbin Wu, Thomas Pähtz, Zixiao Guo +3
We report on chute measurements of the free-surface velocity in dense flows of spheres and diverse sands and spheres-sand mixtures down rough inclines. These and previous measu…
Effects of particle elongation on dense granular flows down a rough inclined plane
Jixiong Liu, Lu Jing, Thomas Pähtz +3
Granular materials in nature are nearly always non-spherical, but particle shape effects in granular flow remain largely elusive. This study uses discrete element method simulation…
Dispersive wave propagation in disordered flexible fibers enhances stress attenuation
Peng Wang, Thomas Pähtz, Kun Luo +1
We experimentally and computationally analyze impact-shock-induced stress wave propagation in packings of disordered flexible fibers. We find that dispersive wave propagation, asso…
Anomalous Scaling of Aeolian Sand Transport Reveals Coupling to Bed Rheology
Katharina Tholen, Thomas Pähtz, Sandesh Kamath +2
Predicting transport rates of windblown sand is a central problem in aeolian research, with implications for climate, environmental, and planetary sciences. Though studied since th…
Unification of Aeolian and Fluvial Sediment Transport Rate from Granular Physics
Thomas Pähtz, Orencio Durán
One of the physically least understood characteristics of geophysical transport of sediments along sediment surfaces is the well known experimental observation that the sediment tr…
Universal friction law at granular solid-gas transition explains scaling of sediment transport load with excess fluid shear stress
Thomas Pähtz, Orencio Durán
A key interest in geomorphology is to predict how the shear stress exerted by a turbulent flow of air or liquid onto an erodible sediment bed affects the transport load $M\tild…
Electric Field and Humidity Trigger Contact Electrification
Yanzhen Zhang, Thomas Pähtz, Yonghong Liu +5
Here, we study the old problem of why identical insulators can charge one another on contact. We perform several experiments showing that, if driven by a preexisting electric field…
Flux saturation length of sediment transport
Thomas Pähtz, Jasper F. Kok, Eric J. R. Parteli +1
Sediment transport along the surface drives geophysical phenomena as diverse as wind erosion and dune formation. The main length-scale controlling the dynamics of sediment erosion…
Analytical model for flux saturation in sediment transport
Thomas Pähtz, Eric J. R. Parteli, Jasper F. Kok +1
The transport of sediment by a fluid along the surface is responsible for dune formation, dust entrainment and for a rich diversity of patterns on the bottom of oceans, rivers, and…