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Updated: Jun 23, 2026

Studying Large Amplitude Oscillatory Shear Response of Soft Materials
Published on: April 25, 2019
Power and pressure fluctuations in elastic turbulence over a wide range of polymer concentrations
Yonggun Jun1, Victor Steinberg
1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, 76100 Israel.
Abstract:
Injected power P and pressure p fluctuations in a swirling flow of polymer solutions in a wide range of polymer concentrations c in elastic turbulence regime show non-Gaussian statistics that strongly resemble statistical behavior of P and p in hydrodynamic turbulence. Together with this fact, weak dependence of the statistics of rescaled variables on c may suggest that there are universal mechanisms determining the intermittent statistics of P and p. We also show that the study of the statistics of p provides a way to study statistics of the elastic stresses in elastic turbulence otherwise currently unattainable.
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