Drag Reduction by Polymer Additives in Decaying Turbulence
arXiv:cond-mat/0411080 · doi:10.1103/PhysRevE.72.017301
Abstract
We present results from a systematic numerical study of decaying turbulence in a dilute polymer solution by using a shell-model version of the FENE-P equations. Our study leads to an appealing definition of drag reduction for the case of decaying turbulence. We exhibit several new results, such as the potential-energy spectrum of the polymer, hitherto unobserved features in the temporal evolution of the kinetic-energy spectrum, and characterize intermittency in such systems. We compare our results with the GOY shell model for fluid turbulence.
4 pages RevTex4, 7 figures, accepted for publication in Physical Review E
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Cited by in corpus (10)
- Manifestations of Drag Reduction by Polymer Additives in Decaying, Homogeneous, Isotropic Turbulence
- Polymers in Fluid Flows
- Systematics of the magnetic-Prandtl-number dependence of homogeneous, isotropic magnetohydrodynamic turbulence
- Direct numerical simulations of statistically steady, homogeneous, isotropic fluid turbulence with polymer additives
- Binary-Fluid Turbulence: Signatures of Multifractal Droplet Dynamics and Dissipation Reduction
- Two-dimensional, homogeneous, isotropic fluid turbulence with polymer additives
- Polymer scission in turbulent flows
- Multiscaling in superfluid turbulence: A shell-model study
- Bridging Inertial and Dissipation Range Statistics in Rotating Turbulence
- Turbulent drag reduction in magnetohydrodynamic and quasi-static magnetohydrodynamic turbulence