Inertial spheroids in homogeneous, isotropic turbulence
arXiv:1808.01388 · doi:10.1103/PhysRevE.98.021101
Abstract
We study the rotational dynamics of {\it inertial} disks and rods in three-dimensional, homogeneous isotropic turbulence. In particular, we show how the alignment and the decorrelation time-scales of such spheroids depend, critically, on both the level of inertia and the aspect ratio of these particles. These results illustrate the effect of inertia---which leads to a preferential sampling of the local flow geometry---on the statistics of both disks and rods in a turbulent flow. Our results are important for a variety of natural and industrial settings where the turbulent transport of asymmetric, spheroidal inertial particles is ubiquitous.
arXiv comment6 pages, 4 figures
References in corpus (14)
- Rotation Rate of Rods in Turbulent Fluid Flow
- Fractal clustering of inertial particles in random flows
- Caustic activation of rain showers
- Gravity-driven enhancement of heavy particle clustering in turbulent flow
- Multifractal concentrations of inertial particles in smooth random flows
- Tumbling of small axisymmetric particles in random and turbulent flows
- Distribution of relative velocities in turbulent aerosols
- Orientation dynamics of small, triaxial-ellipsoidal particles in isotropic turbulence
- Systematics of the magnetic-Prandtl-number dependence of homogeneous, isotropic magnetohydrodynamic turbulence
- Extreme fluctuations of the relative velocities between droplets in turbulent airflow
- Statistical model for the orientation of non-spherical particles settling in turbulence
- Abrupt growth of large aggregates by correlated coalescences in turbulent flow
- Fingerprints of Random Flows?
- Elliptical Tracers in Two-dimensional, Homogeneous, Isotropic Fluid Turbulence: the Statistics of Alignment, Rotation, and Nematic Order
Cited by in corpus (6)
- Droplet-turbulence interactions and quasi-equilibrium dynamics in turbulent emulsions
- Orientation Dynamics of Sedimenting Anisotropic Particles in Turbulence
- Flocking of Active Particles in a Turbulent Flow
- Velocity and acceleration statistics of heavy spheroidal particles in turbulence
- Pair statistics of oblate spheroids settling in a turbulent flow
- Fluid dynamics in clouds: The sum of its parts