Coexistence of Active and Hydrodynamic Turbulence in Two-Dimensional Active Nematics.

In active nematic liquid crystals, activity is able to drive chaotic spatiotemporal flows referred to as active turbulence. Active turbulence has been characterized through theoretical and experimental work as a low Reynolds number phenomenon. We show that, in two dimensions, the active forcing alone is able to trigger hydrodynamic turbulence leading to the coexistence of active and inertial turbulence. This type of flow develops for sufficiently active and extensile flow-aligning nematics. We observe that the combined effect of an extensile nematic and large values of the flow-aligning parameter leads to a broadening of the elastic energy spectrum that promotes a growth of kinetic energy able to trigger an inverse energy cascade.

• Publication year

  2022

• Venue

  Physical Review Letters

• Publication date

  2022-10-29

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1103/PhysRevLett.129.218001arXiv 2210.16529PMID 36461968
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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