Resources

Author(s): Haitao Zhu, Chenmingze Li, Long Chen, and Mingjiu Ni Thermal convection under a horizontal magnetic field is known to promote quasi-two-dimensionalization, yet its impact on transport in strongly confined geometries is incompletely understood. Using three-dimensional simulations of low-Prandtl-number convection in a small-aspect-ratio cell, we reveal a transition from 3D cellular structures to quasi-2D rolls accompanied by regular/irregular...

Author(s): Hamid Reza Zandi Pour, Perry L. Johnson, and Michele Iovieno The heat transfer in a turbulent thermal mixing layer of a fluid laden with inertial particles with finite heat capacity is investigated using direct numerical simulations. A reduced phase-space analysis, combined with a moment-of-total-enthalpy formulation, reveals how particle inertia and finite thermal response organize velocity–temperature correlations. These mechanisms...

Author(s): Sandip Sarkar and Arnab Kumar De The present reserch investigates two-dimensional numerical simulations of vortex-induced vibrations (VIV) of initially tandem circular cylinders with two degrees of freedom in both the streamwise and transverse directions, undergoing rigid collisions for varying mass ratios. The cylinders exhibit a natural tendency to reconfigure their mean positions into a side-by-side arrangement. As the mass ratio...

Author(s): J. R. Carpenter The behavior of waves on a water surface is usually classified in terms of the different modes of oscillation that are present. However, for water that is flowing, this description alone will miss a vital part of the physics. [Phys. Rev. Fluids 11, 024804] Published Mon Feb 23, 2026

Author(s): Eunhye An and Eric Johnsen We investigate the effects of compressibility and geometry on turbulent/nonturbulent mixing in the absence of a mean shear. Focusing on initially homogeneous isotropic turbulence adjacent to a quiescent fluid in planar and cylindrical geometries, we theoretically predict the evolution of the mixing region width and turbulent kinetic energy and validate these predictions using direct numerical simulation. Compared...

Author(s): Gopal Verma and Wei Li Particle motion at fluid interfaces is commonly governed by static capillary interactions, limiting active control. Here, we introduce a geometry-controlled capillary well formed by a neck-shaped meniscus around a vertically actuated rod, enabling reversible trapping and guided migration of particles. Elliptical rods generate anisotropic curvature landscapes that focus particles toward regions of maximum curvature...

Author(s): Alban Sauret From inkjet printers to irrigation lines, particle-laden flows can fail abruptly by clogging. This Perspective reviews recent work on particulate suspensions in confined geometries and the key control parameters behind clogging. Some general guidelines are provided: particles can be too large (sieving), too crowded (bridging), or too sticky (aggregation). We highlight recent efforts to characterize, model, and delay clogs...