42 citations · 130 across the 5 of their papers we have counts for
5 papers
Statistical orientation and distribution of columnar ice crystals in turbulent flows
A. Pumir, M. Z. Sheikh, K. Gustavsson +3
We study the motion of columnar ice crystals that form in clouds over a range of low temperature. Our focus here is on elongated ice crystals, which are smaller than the size of th…
Experimental validation of fluid inertia models for a cylinder settling in a quiescent flow
F. Cabrera, M. Z. Sheikh, B. Mehlig +4
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, ver…
Effect of particle inertia on the alignment of small ice crystals in turbulent clouds
K. Gustavsson, M. Z. Sheikh, A. Naso +2
Small non-spherical 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 sm…
Importance of fluid inertia for the orientation of spheroids settling in turbulent flow
Muhammad Zubair Sheikh, Kristian Gustavsson, Diego Lopez +4
How non-spherical particles orient as they settle in a flow has important practical implications in a number of scientific and engineering problems. In a quiescent fluid, a slowly…
Theory for the effect of fluid inertia on the orientation of a small particle settling in turbulence
K. Gustavsson, M. Z. Sheikh, D. Lopez +3
Ice crystals settling through a turbulent cloud are rotated by turbulent velocity gradients. In the same way, turbulence affects the orientation of aggregates of organic matter set…