Resolving the fine-scale structure in turbulent Rayleigh–Bénard convection

  title={Resolving the fine-scale structure in turbulent Rayleigh–B{\'e}nard convection},
  author={Janet D. Scheel and Mohammad S. Emran and J{\"o}rg Schumacher},
  journal={New Journal of Physics},
We present high-resolution direct numerical simulation studies of turbulent Rayleigh–Bénard convection in a closed cylindrical cell with an aspect ratio of one. The focus of our analysis is on the finest scales of convective turbulence, in particular the statistics of the kinetic energy and thermal dissipation rates in the bulk and the whole cell. The fluctuations of the energy dissipation field can directly be translated into a fluctuating local dissipation scale which is found to develop ever… 
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