Anisotropic particles in turbulence
Anisotropic particles are common in many industrial and natural turbulent flows. When these
particles are small and neutrally buoyant, they follow Lagrangian trajectories while …
particles are small and neutrally buoyant, they follow Lagrangian trajectories while …
Statistical models for spatial patterns of heavy particles in turbulence
K Gustavsson, B Mehlig - Advances in Physics, 2016 - Taylor & Francis
The dynamics of heavy particles suspended in turbulent flows is of fundamental importance
for a wide range of questions in astrophysics, atmospheric physics, oceanography, and …
for a wide range of questions in astrophysics, atmospheric physics, oceanography, and …
A web services accessible database of turbulent channel flow and its use for testing a new integral wall model for LES
abstract The output from a direct numerical simulation (DNS) of turbulent channel flow at Re
τ≈ 1000 is used to construct a publicly and Web services accessible, spatio-temporal …
τ≈ 1000 is used to construct a publicly and Web services accessible, spatio-temporal …
Rotation of nonspherical particles in turbulent channel flow
The effects of particle inertia, particle shape, and fluid shear on particle rotation are
examined using direct numerical simulation of turbulent channel flow. Particles at the …
examined using direct numerical simulation of turbulent channel flow. Particles at the …
Shape-dependence of particle rotation in isotropic turbulence
We consider the rotation of neutrally buoyant axisymmetric particles suspended in isotropic
turbulence. Using laboratory experiments as well as numerical and analytical calculations …
turbulence. Using laboratory experiments as well as numerical and analytical calculations …
Inertia induces strong orientation fluctuations of nonspherical atmospheric particles
T Bhowmick, J Seesing, K Gustavsson, J Guettler… - Physical Review Letters, 2024 - APS
The orientation of nonspherical particles in the atmosphere, such as volcanic ash and ice
crystals, influences their residence times and the radiative properties of the atmosphere …
crystals, influences their residence times and the radiative properties of the atmosphere …
Alignment of vorticity and rods with Lagrangian fluid stretching in turbulence
Stretching in continuum mechanics is naturally described using the Cauchy–Green strain
tensors. These tensors quantify the Lagrangian stretching experienced by a material …
tensors. These tensors quantify the Lagrangian stretching experienced by a material …
Orientation and rotation of inertial disk particles in wall turbulence
The translational and rotational dynamics of oblate spheroidal particles suspended in a
directly simulated turbulent channel flow have been examined. Inertial disk-like particles …
directly simulated turbulent channel flow have been examined. Inertial disk-like particles …
Measurements of the coupling between the tumbling of rods and the velocity gradient tensor in turbulence
We present simultaneous experimental measurements of the dynamics of anisotropic
particles transported by a turbulent flow and the velocity gradient tensor of the flow …
particles transported by a turbulent flow and the velocity gradient tensor of the flow …
Effect of fluid inertia on the orientation of a small prolate spheroid settling in turbulence
We study the angular dynamics of small non-spherical particles settling in a turbulent flow,
such as ice crystals in clouds, aggregates of organic material in the oceans, or fibres settling …
such as ice crystals in clouds, aggregates of organic material in the oceans, or fibres settling …