Kolmogorov length scale

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Short definition of Kolmogorov length scale (Kolmogorov length scale)
Kolmogorov length scale [math]\displaystyle{ \eta }[/math]

This is the common definition for Kolmogorov length scale, but other definitions maybe discussed within the wiki.


[math]\displaystyle{ \eta=\left(\frac{\nu^3}{\varepsilon}\right)^{1/4} }[/math] where [math]\displaystyle{ \nu }[/math] is the kinematic viscosity of the fluid and [math]\displaystyle{ \varepsilon }[/math] is the rate of dissipation of turbulence kinetic energy by viscous friction. It is the smallest length scale before viscous effects smoothen the velocity fluctuations.