Effect of plumes on measuring the large scale circulation in turbulent Rayleigh-Bénard convection

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Abstract

We studied the properties of the large-scale circulation (LSC) in turbulent Rayleigh-Bénard (RB) convection by using results from direct numerical simulations in which we placed a large number of numerical probes close to the sidewall. The LSC orientation is determined by either a cosine or a polynomial fit to the azimuthal temperature or azimuthal vertical velocity profile measured with the probes.
Original languageUndefined
Pages (from-to)095110
Number of pages11
JournalPhysics of fluids
Volume23
Issue number9
DOIs
Publication statusPublished - 2011

Keywords

  • Fourier analysis
  • Flow simulation
  • Convection
  • Numerical analysis
  • Turbulence
  • IR-78772
  • flow measurement
  • EWI-21183
  • rotational flow
  • METIS-279974
  • Polynomials

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