Many marine plankton species are motile and perform daily vertical migrations, traveling
across water columns over distances of tens of meters. It is intriguing that these tiny and slow …

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 …

Detailed simulations of flow around various prolate spheroids are performed using multi-
relaxation time lattice Boltzmann method (LBM). The simulations are performed in the …

Collisions, resulting in aggregation of ice crystals in clouds, is an important step in the
formation of snow aggregates. Here, we study the collision process by simulating spheroid …

A statistical learning approach is presented to predict the dependency of steady
hydrodynamic interactions of thin oblate spheroidal particles on particle orientation and …

Direct numerical simulations are performed to evaluate the hydrodynamic forces and torque
on finite-length cylinders embedded in a uniform flow for a wide range of aspect ratios (2≤ …

Rotation and orientation of non-spherical particles in a fluid flow depend on the
hydrodynamic torque they experience. However, little is known about the effect of the fluid …

Small nonspherical particles settling in a quiescent fluid tend to orient so that their broad
side faces down because this is a stable fixed point of their angular dynamics at small …

The precise description of the motion of anisotropic particles in a flow rests on the
understanding of the force and torque acting on them. Here, we study experimentally small …

Fluid-inertia torque remarkably affects the orientation of non-spherical particles in
Newtonian flows whereas this torque induced by convective fluid inertia in particle-laden …