View source for Kolmogorov length scale

{{DefineConcept
|parameter_name=Kolmogorov length scale
|description=Kolmogorov length scale <math>\eta</math>
|article_type=Concept
|instrument_type=
}}
<math>\eta=\left(\frac{\nu^3}{\varepsilon}\right)^{1/4}</math>
where <math>\nu</math> is the kinematic viscosity of the fluid and <math>\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.