PreprintarXiv licencearXiv
Thermal behaviour of settling heavy inertial particles in turbulent natural convection
Abstract
We investigate the dynamical and thermal behaviour of settling heavy inertial particles in bulk turbulent thermal convection. Direct numerical simulations are performed in a homogeneous Rayleigh-Benard convection setup, where a uniform mean temperature gradient drives statistically homogeneous convective turbulence seeded with passive inertial particles. We quantify the effects of dynamic and thermal inertia on particle statistics. In particular, we investigate how the fluctuations of particle velocity and temperature can be traced back to the correlations between particle and fluid variables, and how particle temperature statistics is affected by the interplay of settling and preferential concentration.
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BibTeX
@misc{pour2026thermal,
title = {{Thermal behaviour of settling heavy inertial particles in turbulent natural convection}},
author = {Hamid Reza Zandi Pour and Guido Boffetta and Stefano Musacchio and Filippo De Lillo},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.29926},
eprint = {2609.29926},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.29926},
}
RIS
TY - UNPB
TI - Thermal behaviour of settling heavy inertial particles in turbulent natural convection
AU - Hamid Reza Zandi Pour
AU - Guido Boffetta
AU - Stefano Musacchio
AU - Filippo De Lillo
PY - 2026
DA - 2026/09/24
PB - arXiv
DO - 10.48550/arxiv.2609.29926
UR - https://arxiv.org/abs/2609.29926
AB - We investigate the dynamical and thermal behaviour of settling heavy inertial particles in bulk turbulent thermal convection. Direct numerical simulations are performed in a homogeneous Rayleigh-Benard convection setup, where a uniform mean temperature gradient drives statistically homogeneous convective turbulence seeded with passive inertial particles. We quantify the effects of dynamic and thermal inertia on particle statistics. In particular, we investigate how the fluctuations of particle velocity and temperature can be traced back to the correlations between particle and fluid variables, and how particle temperature statistics is affected by the interplay of settling and preferential concentration.
ER -