Effect of the Reynolds number on turbulence kinetic energy exchanges in flows with highly variable fluid properties

@article{Dupuy2019EffectOT,
  title={Effect of the Reynolds number on turbulence kinetic energy exchanges in flows with highly variable fluid properties},
  author={Dorian Dupuy and Adrien Toutant and Françoise Bataille},
  journal={Physics of Fluids},
  year={2019}
}
Spatial and spectral energy exchanges associated with the turbulence kinetic energy per unit mass, or half-trace of the velocity covariance tensor, are studied in an anisothermal low Mach number turbulent channel flow. The temperatures of the two channel walls are 293 K and 586 K. This generates a strong temperature gradient in the wall-normal direction. The effect of the temperature gradient on the energy exchanges is investigated using two direct numerical simulations of the channel, at the… 
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