# Kinetics of a frictional granular motor

Source: [Kinetics of a frictional granular motor](<https://www.sota2.com/research/paper/68fa2ff41e209131ce870eb9>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T17:54:30.467Z

Authors: Julian Talbot, Ricky D. Wildman, Pascal Viot

Published: 2011-08-26T14:24:47.000Z

## Abstract

Within the framework of a Boltzmann-Lorentz equation, we analyze the dynamics of a granular rotor immersed in a bath of thermalized particles in the presence of a frictional torque on the axis. In numerical simulations of the equation, we observe two scaling regimes at low and high bath temperatures. In the large friction limit, we obtain the exact solution of a model corresponding to asymptotic behavior of the Boltzmann-Lorentz equation. In the limit of large rotor mass and small friction, we derive a Fokker-Planck equation for which the exact solution is also obtained.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1108.5311>)

[PDF](<https://arxiv.org/pdf/1108.5311.pdf>)