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 | ||
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<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 |
This is the common definition for Kolmogorov length scale, but other definitions maybe discussed within the wiki.
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where is the kinematic viscosity of the fluid and 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.
