Multiscale flow topologies in microconfined high-pressure transcritical fluid turbulence

Abstract

Using theoretical and computational methods we obtain these findings: 1) In micro-confined high-pressure transcritical turbulence, higher than typical levels of vorticity are observed in the viscous sublayer; 2) Flow topologies typical from far-wall regions are observed in the vicinity of the supercritical gas-like wall; and 3) Tube-like flow motions are favored at scales comparable to the density-gradient scale, resulting in a smaller number of vortex sheet structures.

Topics & Concepts