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Direct Numerical Simulations of Turbulent Rayleigh-Bénard Convection in Wide Cylinders

  • O. Shishkina
  • C. Wagner
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 101)

Abstract

It is well-known that heat transport in Rayleigh-Bénard convection, which can be expressed by the Nusselt number Nu, scales with the Rayleigh number Ra [1]–[2]. Chavanne et al compared numerous experimental results [3] and showed that the obtained scaling law Nu vs. Ra depends on the aspect ratio a = H/R (where R denotes the radius and H — the height of the cylinder) and the Prandtl number Pr = v/k. While most experiments were conducted in a cylindrical confinement for practical reasons, the majority of the so far performed numerical simulations were conducted for planar configurations

Keywords

Rayleigh Number Direct Numerical Simulation Axial Velocity Direct Numerical Simulation Data Numerous Experimental Result 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • O. Shishkina
    • 1
  • C. Wagner
    • 1
  1. 1.Institute for Aerodynamics and Flow TechnologyDLRGöttingen

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