Turbulence in dilute polymer solutions when polymers are strongly stretched by the flow is investigated. We establish power-law spectra of velocity, that are not associated with a flux …
The small-scale statistics of homogeneous isotropic turbulence of dilute polymer solutions is investigated by means of direct numerical simulations of a simplified viscoelastic fluid model …
The dynamics of dilute polymer solutions is investigated in wall turbulent flow. A realistic turbulent flow field is obtained by a fully coupled direct numerical simulation of a drag …
A Ahmad, D Vincenzi - Physical Review E, 2016 - APS
We study the deformation of flexible polymers whose contour length lies in the inertial range of a homogeneous and isotropic turbulent flow. By using the elastic dumbbell model and a …
Direct numerical simulation of polymer-laden turbulent flow is performed for the investigation of the two-way interaction. Lagrangian dynamic simulation is adopted for a finitely extensible …
By tracking small particles in the bulk of an intensely turbulent laboratory flow, we study the effect of long-chain polymers on the Eulerian structure functions. We find that the structure …
The interaction of polymers with turbulent shear flows is examined. We focus on the structure of the elastic stress tensor, which is proportional to the polymer conformation tensor. We …
M Mohammadtabar, RS Sanders, S Ghaemi - Physics of Fluids, 2017 - pubs.aip.org
The turbulent structure of a channel flow of Xanthan Gum (XG) polymer solution is experimentally investigated and compared with water flow at a Reynolds number of Re …
Y Jun, V Steinberg - Physical Review E—Statistical, Nonlinear, and Soft …, 2011 - APS
We report detailed quantitative studies of elastic turbulence in a curvilinear channel flow in a dilute polymer solution of high molecular weight polyacrylamide in a high viscosity water …