Elasto-inertial turbulence
Turbulence is ubiquitous in nature, yet even for the case of ordinary Newtonian fluids like
water, our understanding of this phenomenon is limited. Many liquids of practical importance …
water, our understanding of this phenomenon is limited. Many liquids of practical importance …
Elasto-inertial turbulence
The dissolution of minute concentration of polymers in wall-bounded flows is well-known for
its unparalleled ability to reduce turbulent friction drag. Another phenomenon, elasto-inertial …
its unparalleled ability to reduce turbulent friction drag. Another phenomenon, elasto-inertial …
On the mechanism of elasto-inertial turbulence
… This paper investigates a new turbulent state, elasto-inertial turbulence,8 created by polymers
in a channel flow in a range of Reynolds numbers, from sub- to supercritical. EIT shares …
in a channel flow in a range of Reynolds numbers, from sub- to supercritical. EIT shares …
On the role of pressure in elasto-inertial turbulence
… The dynamics of elasto-inertial turbulence is investigated … is almost negligible in elasto-inertial
turbulence. Statistics on … transfers between polymers and turbulence and the redistributive …
turbulence. Statistics on … transfers between polymers and turbulence and the redistributive …
Energy spectra in elasto-inertial turbulence
… time, which is a regime recently termed elasto-inertial turbulence. In this regime the polymers
are … Finally, we show that the tendency for a steeper elasto-inertial power-law spectra is …
are … Finally, we show that the tendency for a steeper elasto-inertial power-law spectra is …
First coherent structure in elasto-inertial turbulence
Two-dimensional channel flow simulations of FENE-P (finitely extensible nonlinear elastic-Peterlin)
fluid in the elasto-inertial turbulence (EIT) regime reveal distinct regimes ranging …
fluid in the elasto-inertial turbulence (EIT) regime reveal distinct regimes ranging …
Two-dimensional dynamics of elasto-inertial turbulence and its role in polymer drag reduction
… of the elasto-inertial instability in elasto-inertial turbulence (… turbulence can be observed
in two-dimensional subcritical flows, confirming the existence of a bidimensional elasto-inertial …
in two-dimensional subcritical flows, confirming the existence of a bidimensional elasto-inertial …
[HTML][HTML] Role of elasto-inertial turbulence in viscoelastic drag-reducing turbulence
… turbulence (IT), drag-reducing turbulence (DRT), elastic turbulence, and elasto-inertial turbulence
… This Letter quantitatively demonstrates the role of IT and EIT in drag-reducing turbulent …
… This Letter quantitatively demonstrates the role of IT and EIT in drag-reducing turbulent …
Continuous pathway between the elasto-inertial and elastic turbulent states in viscoelastic channel flow
… identified elasto-inertial turbulent state … turbulence at zero Re and to elasto-inertial turbulence
at moderate Re, implying the existence of continuous pathways connecting the turbulent …
at moderate Re, implying the existence of continuous pathways connecting the turbulent …
Repicturing viscoelastic drag-reducing turbulence by introducing dynamics of elasto-inertial turbulence
WH Zhang, HN Zhang, ZM Wang, YK Li… - Journal of Fluid …, 2022 - cambridge.org
… It has long been regarded as polymer-modulated inertial turbulence (IT), but is challenged
by the newly proposed concept of elasto-inertial turbulence (EIT). This study is to repicture …
by the newly proposed concept of elasto-inertial turbulence (EIT). This study is to repicture …