Rotational intermittency and turbulence induced lift experienced by large particles in a turbulent flow
arXiv:1012.4381 · doi:10.1103/PhysRevLett.106.154501
Abstract
The motion of a large, neutrally buoyant, particle, freely advected by a turbulent flow is determined experimentally. We demonstrate that both the translational and angular accelerations exhibit very wide probability distributions, a manifestation of intermittency. The orientation of the angular velocity with respect to the trajectory, as well as the translational acceleration conditioned on the spinning velocity provide evidence of a lift force acting on the particle.
4 page, 4 figures
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