Hydrodynamic turbulence in quasi-Keplerian rotating flows

Shi, Liang; Hof, Björn; Rampp, M.; Avila, M.

doi:10.1063/1.4981525

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Hydrodynamic turbulence in quasi-Keplerian rotating flows

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Shi, Liang
Max Planck Research Group Complex Dynamics and Turbulence, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Hof, Björn
Max Planck Research Group Complex Dynamics and Turbulence, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

Shi, L., Hof, B., Rampp, M., & Avila, M. (2017). Hydrodynamic turbulence in quasi-Keplerian rotating flows. Physics of Fluids, 29(4): 044107. doi:10.1063/1.4981525.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-5A1B-9

Abstract

We report a direct-numerical-simulation study of the Taylor-Couette flow in the quasi-Keplerian regime at shear Reynolds numbers up to O(10(5)). Quasi-Keplerian rotating flow has been investigated for decades as a simplified model system to study the origin of turbulence in accretion disks that is not fully understood. The flow in this study is axially periodic and thus the experimental end-wall effects on the stability of the flow are avoided. Using optimal linear perturbations as initial conditions, our simulations find no sustained turbulence: the strong initial perturbations distort the velocity profile and trigger turbulence that eventually decays. Published by AIP Publishing.