Polarized vortex reconnection

Abstract

Polarized vortical structures (i.e. with axial flow, thus coiled vortex lines) are generic to turbulent flows – hence the importance of their dynamics, interactions and cascade. Direct numerical simulations of two anti-parallel polarized vortex tubes are performed for vortex Reynolds numbers . Therefore, polarization can significantly alter the dynamics of vortex reconnection as well as turbulence cascade.