Granular fluids with solid friction and heating

Prasenjit Das, Sanjay Puri*, Moshe Schwartz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We perform large-scale molecular dynamics simulations to study heated granular fluids in three dimensions. Granular particles dissipate their kinetic energy due to solid frictional interaction with other particles. The velocity of each particle is perturbed by a uniformly-distributed random noise, which mimics the heating. At the early stage of evolution, the kinetic energy of the system decays with time and reaches a steady state at a later stage. The velocity distribution in the steady state shows a non-Gaussian distribution. This has been characterized by using the Sonine polynomial expansion for a wide range of densities. Particles show diffusive motion for densities below the jamming densityϕJ.

Original languageEnglish
Article number15
JournalGranular Matter
Volume20
Issue number1
DOIs
StatePublished - 1 Feb 2018

Funding

FundersFunder number
ISF-UGC
Department of Science and Technology, Ministry of Science and Technology, India839/14
Council of Scientific and Industrial Research, India
University Grants Committee
Israel Science Foundation

    Keywords

    • Cooling
    • Friction
    • Granular gases

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