2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/109173Advection properties of passive particles in flows generated by point vortices are considered. Transport properties are anomalous with characteristic transport exponent $μ\sim 1.5$. This behavior is linked back to the presence of coherent fractal structures within the flow. A fractional kinetic analysis allows to link the characteristic transport exponent $μ$ to the trapping time exponent $γ=1+μ$. The quantitative agreement is found for different systems of vortices investigated and a clear signature is obtained of the fractional nature of transport in these flows.Chaotic DynamicsAtmospheric and Oceanic Physicstext