Statistics and tensor analysis of polymer coil–stretch mechanism in turbulent drag reducing channel flow
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.332
Abstract: The polymer coil–stretch mechanism in turbulent drag reducing flows is analysed using direct numerical simulations of viscoelastic finitely extensible nonlinear elastic fluids with the Peterlin approximation. The study is carried out taking into account low… read more here.
Keywords: drag reducing; polymer; coil stretch; polymer coil ... See more keywords
Elastic particle model for coil-stretch transition of dilute polymers in an elongational flow
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2024.196
Abstract: Abstract The phenomenon of the ‘coil-stretch’ (C-S) transition, wherein a long-chain polymer initially in a coiled state undergoes a sudden configuration change to become fully stretched under steady elongational flows, has been widely recognized. This… read more here.
Keywords: coil stretch; stretch transition; elongational flow; model ... See more keywords
Self-induced hydrodynamic coil-stretch transition of active polymers.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.105.014608
Abstract: We analyze the conformational dynamics and statistical properties of an active polymer model. The polymer is described as a freely jointed bead-rod chain subject to stochastic active force dipoles that act on the suspending solvent… read more here.
Keywords: coil stretch; transition; stretch transition; self induced ... See more keywords