Related Experiment Video
Updated: Oct 6, 2026

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
Published on: February 22, 2018
The ultimate state of elastic turbulence
Piyush Garg1, Marco Edoardo Rosti1
1Complex Fluids and Flows Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0495, Japan. marco.rosti@oist.jp.
Abstract:
The asymptotic properties, with vanishing viscosity, of inertial turbulence in Newtonian fluids have been of intense scrutiny over the years. Much less is known about elastic turbulence - a distinct spatio-temporally chaotic state exhibited by viscoelastic fluids. In this work, using direct numerical simulations of turbulence in a triperiodic box, we show that elastic turbulence achieves an ultimate state with increasing polymer relaxation time, i.e., the Deborah number, for two different constitutive models (Oldroyd-B and FENE-P). In the limiting state, various bulk quantities - the fluid dissipation, the polymeric energy transfer, as well as the elastic stresses - are shown to become independent of the polymer relaxation time scale, notwithstanding the microstructure deformation scales distinctly depending on the model.
Related Concept Videos
Circular Shafts - Elastoplastic Materials
As torque on the...
Turbulent Flow
Members Made of Elastoplastic Material
As the bending moment...
Elasticity
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
Elastic Collisions: Introduction
Static Equilibrium - II
