5 papers · 1 filter
Fluid-inertia torques from particle-shape symmetry
L. Sundberg, F. Candelier, N. Fintzi +4
Numerical simulation of particle motion in fluids at low particle Reynolds numbers is often based on empirical force and torque models obtained by fitting force and torque from ab-…
Smart navigation of a gravity-driven glider with adjustable centre-of-mass
X. Jiang, J. Qiu, K. Gustavsson +2
Artificial gliders are designed to disperse as they settle through a fluid, requiring precise navigation to reach target locations. We show that a compact glider settling in a visc…
Transport barriers for microswimmers in unsteady flow
L. Storm, J. Qiu, K. Gustavsson +1
Certain flow structures trap active microorganisms over extended periods, impacting mortality and growth by inhibiting foraging, exploration, and predator evasion. We show that tra…
Inertia induces strong orientation fluctuations of non-spherical atmospheric particles
T. Bhowmick, J. Seesing, K. Gustavsson +5
The orientation of non-spherical particles in the atmosphere, such as volcanic ash and ice crystals, influences their residence times, and the radiative properties of the atmospher…
Torques on curved atmospheric fibres
F. Candelier, K. Gustavsson, P. Sharma +4
Small particles are transported over long distances in the atmosphere, with significant environmental impact. The transport of symmetric particles is well understood, but atmospher…