Work

Generating the granular solitary wave

Year: 2025

Type: article

Abstract: Based on the generalised Saint-Venant equations for granular flow on an inclined chute, we show how to generate solitary waves from localised perturbations at the inlet. Such perturbations usually give rise to a group of roll waves, but by choosing the system parameters appropriately, the formation of all but the first wave can be suppressed, thus turning this first one into a solitary wave. This calls for a highly diffusive flow, which is realised for inclination angles close to the minimal angle required to keep the granular material flowing.

Source: Journal of Fluid Mechanics

DOI: 10.1017/jfm.2025.10834

Authors: Giorgos Kanellopoulos, Dimitrios Razis, Ko van der Weele

Institutions: University of Patras, National and Kapodistrian University of Athens, Academy of Athens

Language: English

Topic: Granular flow and fluidized beds

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,550

Funder: University of Patras