Kolmogorov length scale: Difference between revisions
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{{DefineConcept | {{DefineConcept | ||
|parameter_name=Kolmogorov length scale | |parameter_name=Kolmogorov length scale | ||
|description=Kolmogorov length scale <math> | |description=Kolmogorov length scale <math>L_k</math> | ||
|article_type=Concept | |article_type=Concept | ||
}} | }} | ||
<math> | <math>L_k=\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. | 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. | ||
Revision as of 11:49, 19 November 2021
| Short definition of Kolmogorov length scale (Kolmogorov length scale) |
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| Kolmogorov length scale [math]\displaystyle{ L_k }[/math] |
This is the common definition for Kolmogorov length scale, but other definitions maybe discussed within the wiki.
[math]\displaystyle{ L_k=\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.
