176 citations · 3.8k across the 162 of their papers we have counts for
7 papers · 2 filters
Spinning and tumbling of micron-sized triangles in a micro-channel shear flow
J. Fries, M. Vijay Kumar, B. Mekonnen Mihiretie +2
We report on measurements of the angular dynamics of micron-sized equilaterally triangular platelets suspended in a micro-channel shear flow. Our measurements confirm that such par…
Passive directors in turbulence
L. Zhao, K. Gustavsson, R. Ni +4
In experiments and numerical simulations we measured angles between the symmetry axes of small spheroids advected in turbulence ("passive directors"). Since turbulent strains tend…
Emergent scar lines in chaotic advection of passive directors
Bardia Hejazi, Bernhard Mehlig, Greg A. Voth
We examine the spatial field of orientations of slender fibers that are advected by a two-dimensional fluid flow. The orientation field of these passive directors are important in…
Intrinsic viscosity of a suspension of weakly Brownian ellipsoids in shear
G. Almondo, J. Einarsson, J. R. Angilella +1
We analyze the angular dynamics of triaxial ellipsoids in a shear flow subject to weak thermal noise. By numerically integrating an overdamped angular Langevin equation, we find th…
Optical manipulation for studies of collisional dynamics of micron-sized droplets under gravity
M. Ivanov, K. Chang, I. Galinskiy +2
A new experimental technique for creating and imaging collisions of micron-sized droplets settling under gravity is presented. A pair of glycerol droplets is suspended in air by me…
Relative velocities in bidisperse turbulent suspensions
J. Meibohm, L. Pistone, K. Gustavsson +1
We investigate the distribution of relative velocities between small heavy particles of different sizes in turbulence by analysing a statistical model for bidisperse turbulent susp…