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Properties of the Boundary Zonal Flow (BZF) in rapidly rotating turbulent convection

ORAL

Abstract

Properties of the boundary zonal flow (BZF) in rapidly rotating Rayleigh-Benard convection are investigated numerically. Based on direct numerical simulations (DNS) using the finite-volume code GOLDFISH, we analyze in detail the BZF and, in particular, the traveling-mode structures and their dependencies on Ekman number. We also investigate the role of the BZF in the global heat transport in the system as well as the influence of the Prandtl number and the aspect ratio of the cylindrical convection cell on the BZF properties.

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Authors

  • Xuan Zhang

    Max Planck Institute f. Dynamics and Self-Organisation, Max Planck Institute for Dynamics and Self-Organization, Max Planck Insitute for Dynamics and Self-Organization

  • Lukas Zwirner

    Max Planck Institute for Dynamics and Self-Organization, Goettingen, Max Planck Institute for Dynamics and Self-Organization, Max Planck Institute f. Dynamics and Self-Organisation, Max Planck Insitute for Dynamics and Self-Organization

  • Susanne Horn

    Coventry University

  • Dennis Van Gils

    University Twente, University of Twente

  • Marcel Wedi

    Max Planck Institute f. Dynamics and Self-Organisation, Max Planck Institute for Dynamics and Self-Organization, Max Planck Insitute for Dynamics and Self-Organization

  • Guenter Ahlers

    University of California, Santa Barbara

  • Stephan Weiss

    Max Planck Institute f. Dynamics and Self-Organisation, Max Planck Institute for Dynamics and Self-Organization, Max Planck Insitute for Dynamics and Self-Organization

  • Eberhard Bodenschatz

    Max Planck Institute for Dynamics and Self-Organization, Goettingen, Germany, Max Planck Institute f. Dynamics and Self-Organisation, Max Planck Institute for Dynamics and Self-Organization

  • Robert Ecke

    Los Alamos National Laboratory

  • Olga Shishkina

    Max-Planck Institute for Dynamics and Self-Organization, Goettingen, Max-Planck Institut, Max Planck Institute for Dynamics and Self-Organization, Max Planck Institute f. Dynamics and Self-Organisation