File:Fse-large-eddy-simulation-v1.svg

Fse-large-eddy-simulation-v1.svg (SVG file, nominally 900 × 600 pixels, file size: 8 KB)

Summary

Turbulent energy against inverse eddy size: LES computes the large eddies and models the small ones, RANS averages over all scales, DNS resolves all. Based on Cox and Kumar (2002), p. 3-196.

Original illustration for Large eddy simulation, level 4 Expert.

Source basis: Cox and Kumar (2002), p. 3-196, Figure 3-8.1 (schematic turbulent energy spectrum: redraw, do not copy); McGrattan et al. (2026), pp. 27–28 (DNS below the Kolmogorov scale)
Alt text: Curve of turbulent energy against inverse eddy size, with bars showing what RANS, LES and DNS compute and model.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:36, 2 November 2026		900 × 600 (8 KB)	Jan (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Large eddy simulation

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Short title	Turbulent energy against inverse eddy size: LES computes the large eddies and models the small ones, RANS averages over all scales, DNS resolves all. Based on Cox and Kumar (2002), p. 3-196.
Image title	Curve of turbulent energy against inverse eddy size, with bars showing what RANS, LES and DNS compute and model. Source basis: Cox and Kumar (2002), p. 3-196, Figure 3-8.1 (schematic turbulent energy spectrum: redraw, do not copy); McGrattan et al. (2026), pp. 27–28 (DNS below the Kolmogorov scale)
Width	900
Height	600