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Journal Articles Physical Review Letters Year : 2010

Supertransient Magnetohydrodynamic Turbulence in Keplerian Shear Flows

Erico L. Rempel
  • Function : Author
Geoffroy Lesur
Michael R. E. Proctor
  • Function : Author

Abstract

A subcritical transition to turbulence in magnetized Keplerian shear flows is investigated by using a statistical approach. Three-dimensional numerical simulations of the shearing box equations with zero net magnetic flux are employed to determine the transition from decaying to sustained turbulence as a function of the magnetic Reynolds number R(m). The results reveal no clear transition to sustained turbulence as the average lifetime of the transients grows as an exponential function of R(m), in accordance with a type-II supertransient law.
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Dates and versions

hal-00631987 , version 1 (07-10-2023)

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Erico L. Rempel, Geoffroy Lesur, Michael R. E. Proctor. Supertransient Magnetohydrodynamic Turbulence in Keplerian Shear Flows. Physical Review Letters, 2010, 105, pp.044501. ⟨10.1103/PhysRevLett.105.044501⟩. ⟨hal-00631987⟩
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