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Updated: Apr 27, 2026
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An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
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Center of mass scaling in three-dimensional binary granular systems
C R K Windows-Yule1, D J Parker1
1School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
Summary
We found a scaling relationship for granular systems, dependent on driving velocity, bed depth, particle elasticity, segregation, and mass ratio. This relationship holds robustly across various system parameters.
Area of Science:
- Granular physics
- Complex systems
Background:
- Understanding granular materials is crucial in various scientific and industrial applications.
- Bidisperse granular systems, composed of particles with two different sizes or properties, exhibit complex behaviors like segregation when vibrated.
Purpose of the Study:
- To determine a universal scaling relationship for the center of mass height in vibrofluidized, bidisperse granular systems.
- To identify the key parameters influencing this scaling behavior.
Main Methods:
- Combined experimental data from positron emission particle tracking (PEPT).
- Utilized discrete particle method (DPM) simulations.
- Analyzed a three-dimensional, bidisperse granular system under vibration.
Main Results:
- Established a scaling relationship for the center of mass height.
- Identified dependencies on characteristic driving velocity, granular bed depth, and particle elasticities.
- Found dependence on the degree of segregation and the mass ratio between particle species.
Conclusions:
- The derived scaling relationship is robust across a significant range of system parameters.
- This work provides a fundamental understanding of vibrofluidized granular dynamics.
- The findings can inform the design and control of granular systems.
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