Toggle Main Menu Toggle Search

Open Access padlockePrints

Subcritical turbulent condensate in rapidly rotating Rayleigh-Bénard convection

Lookup NU author(s): Dr Benjamin Favier, Dr Celine Guervilly



This is the authors' accepted manuscript of an article that has been published in its final definitive form by Cambridge University Press, 2019.

For re-use rights please refer to the publisher's terms and conditions.


The possibility of subcritical behaviour in the geostrophic turbulence regime of rapidly rotating thermally driven convection is explored. In this regime a non-local inverse energy transfer may compete with the more traditional and local direct cascade. We show that, even for control parameters for which no inverse cascade has previously been observed, a subcritical transition towards a large-scale vortex state can occur when the system is initialized with a vortex dipole of finite amplitude. This new example of bistability in a turbulent flow, which may not be specific to rotating convection, opens up new avenues for studying energy transfer in strongly anisotropic three-dimensional flows.

Publication metadata

Author(s): Favier B, Guervilly C, Knobloch E

Publication type: Article

Publication status: Published

Journal: Journal of Fluid Mechanics

Year: 2019

Volume: 864

Print publication date: 10/04/2019

Online publication date: 07/02/2019

Acceptance date: 08/01/2019

Date deposited: 06/02/2019

ISSN (print): 0022-1120

ISSN (electronic): 1469-7645

Publisher: Cambridge University Press


DOI: 10.1017/jfm.2019.58


Altmetrics provided by Altmetric


Funder referenceFunder name
NE/M017893/1Natural Environment Research Council (NERC)