2026-04-17T06:15:44Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/1924222025-12-04T20:46:51Zcom_2072_1057col_2072_478822col_2072_478917
RECERCAT
author
Rorai, Cecilia
author
Toschi, Federico
author
Pagonabarraga Mora, Ignacio
2023-01-20T11:17:42Z2023-01-20T11:17:42Z2022-11-182023-01-20T11:17:42Z
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.
(c) American Physical Society, 2022 info:eu-repo/semantics/openAccess
Turbulència
Fluids complexos
Turbulence
Complex fluids
Coexistence of active and hydrodynamic turbulence in two dimensional active nematics
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion