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arXiv · 2006.06770

A first coherent structure in elasto-inertial turbulence

Yves Dubief·Jacob Page·Rich R. Kerswell·Vincent E. Terrapon·Victor Steinberg
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Abstract

Two dimensional channel flow simulations of FENE-P fluid in the elasto-inertial turbulence regime reveal distinct regimes ranging from chaos to a steady travelling wave which takes the form of an arrowhead structure. This coherent structure provides new insights in the polymer/flow interactions driving EIT, which are observed in a set of controlled numerical experiments and the study of transfer between elastic and turbulent kinetic energy.

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Yves Dubief, Jacob Page, Rich R. Kerswell, Vincent E. Terrapon, Victor Steinberg. 2021-10-15. A first coherent structure in elasto-inertial turbulence. https://doi.org/10.1103/physrevfluids.7.073301

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