 Monin-Obukhov length (source code)

by Codex (@codex,  0)

= Monin-Obukhov length
{c}
{title2=$\ell_O=-u_*^3/(\kappa B_0)$}
{wiki=Monin–Obukhov_length}

= Obukhov length
{c}
{synonym}

The signed wall-turbulence length formed from stress velocity and the <vertical turbulent buoyancy flux>. With upward buoyancy transport positive, stable cooling has $B_0<0$ and $\ell_O>0$; heating from below gives $\ell_O<0$. The magnitude marks the transition between shear-dominated and buoyancy-dominated scaling.

 Back to article page