The 1877 Boussinesq Conjecture: Turbulent Fluctuations Are Dissipative on the Mean Flow

Abstract

The 1877 assumption/conjecture of Boussinesq is that turbulent fluctuations have a dissipative effect on the mean flow. The eddy viscosity hypothesis is that this dissipative effect can be modelled by a turbulent viscosity term. Many computational and experimental data sets have shown that the eddy viscosity hypothesis is not generally correct. The inverse… (More)

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