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We revisited the problem of heavy particles suspended in homogeneous boxturbulence flow subjected to rotation along the vertical axis, which introducesanisotropy along the vertical and horizontal planes. We investigate the effectof the emergent structures due to rotation, on the spatial distribution andtemporal statistics of the particles. The spatial distributions were studiedusing the joint probability distribution function (JPDFs) of the twoinvariants, $Q$ and $R$, of the velocity gradient tensor. At high rotationrates, the JPDFs of Lagrangian $Q-R$ plots show remarkable deviations from thewell known \textit{teardrop} shape. The cumulative probability distributionfunctions (CDFs) for times during which a particle remains in vortical orstraining regions, show exponentially decaying tails except for the deviationsat the highest rotation rate. The average residence times of the particles invortical and straining regions are also affected considerably due to theaddition of rotation. In addition, we compute the temporal velocityautocorrelation and connect it to the Lagrangian anisotropy in presence ofrotation. The spatial and temporal statistics of the particles are determinedby a complex competition between the rotation rate and the heaviness of theparticles.

Heavy inertial particles in rotating turbulence : distribution of particles in flow and evolution of Lagrangian trajectories