= Obukhov-Corrsin theory
{c}
{title2=$S_C(r)\sim\epsilon_c\epsilon^{-1/3}r^{2/3}$}
= Kolmogorov-Obukhov-Corrsin theory
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{synonym}
Obukhov-Corrsin theory concerns transfer of <scalar variance> across scales in turbulent mixing. In the inertial-convective range, a constant scalar-variance flux and an eddy turnover time $\epsilon^{-1/3}r^{2/3}$ predict the displayed second-order <scalar structure function>. It assumes a passive scalar, local transfer, approximate statistical equilibrium and separation from the molecular diffusion and forcing scales.
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