https://doi.org/10.1140/epjp/s13360-022-02436-w
Regular Article
Recollisional effects on dissipation of granular gases driven by Gaussian thermostat
Tokio Marine dR Co. Ltd., 1-5-1, Otemachi, 100-0004, Chiyoda-ku, Tokyo, Japan
Received:
27
October
2021
Accepted:
31
January
2022
Published online:
4
March
2022
We investigate the recollisional effects of the granular particles on the spherically symmetric moments and fluctuation–dissipation relation, when the granular gases is driven by the Gaussian thermostat. The no-time-counter (NTC) scheme by Bird is used to express the recollisions of the same pair of granular particles driven by the Gaussian thermostat in the direct simulation Monte Carlo (DSMC) method. The artificial maximum relative velocity is the significant parameter to measure the recollisional probability in the NTC scheme. As the collisional model of granular particles, the inelastic variable sphere is considered. DSMC results indicate that the recollisional effects on the spherically symmetric moments and transport coefficients via the fluctuation–dissipation relation certainly tend to become marked in accordance with the decrease in the restitution coefficient, when they are compared with the analytical results.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022
