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Localized dynamic kinetic-energy-based models for stochastic coherent adaptive large eddy simulation
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10.1063/1.2896283
/content/aip/journal/pof2/20/4/10.1063/1.2896283
http://aip.metastore.ingenta.com/content/aip/journal/pof2/20/4/10.1063/1.2896283

Figures

Image of FIG. 1.
FIG. 1.

Energy decay: (a) LKM (—) and DSM (- - -); (b) LDKM-B (- - -) and LDKM-G (—). The reference GDM (–⋅–) and wavelet-filtered DNS (◻) solutions are shown for comparison.

Image of FIG. 2.
FIG. 2.

Energy spectra at : (a) LKM (–⋅–) and DSM (- - -); (b) LDKM-B (–⋅–) and LDKM-G (- - -). The reference GDM (—) and wavelet-filtered DNS (◻) solutions are shown for comparison, along with the unfiltered DNS (–⋅⋅–).

Image of FIG. 3.
FIG. 3.

Energy spectra at : (a) LKM (–⋅–) and DSM (- - -); (b) LDKM-B (–⋅–) and LDKM-G (- - -). The reference GDM (—) and wavelet-filtered DNS (◻) solutions are shown for comparison, along with the unfiltered DNS (–⋅⋅–).

Image of FIG. 4.
FIG. 4.

Grid compression: (a) DSM (- - -) and LKM (—); (b) LDKM-B (- - -) and LDKM-G (—). The no-model (◻) and GDM (–⋅⋅–) solutions are shown for comparison.

Image of FIG. 5.
FIG. 5.

Energy dissipation: (a) LKM (—) and DSM (–⋅–); (b) LDKM-B (—) and LDKM-G (–⋅–). The reference GDM (- - -) and wavelet-filtered DNS (◻) solutions are shown for comparison.

Image of FIG. 6.
FIG. 6.

Percentage of SGS dissipation: DSM (–⋅–), LKM (- - -), LDKM-B (—), and LDKM-G (○) compared to GDM (◻).

Image of FIG. 7.
FIG. 7.

Energy decay for nonadaptive LES supplied with energy-based models: DSM (–⋅⋅–), LDKM-B (—), and LDKM-G (○), along with the corresponding GDM (- - -). The wavelet-filtered DNS (◻) and no-model (–⋅–) solutions are shown for comparison.

Image of FIG. 8.
FIG. 8.

Energy spectra at for nonadaptive LES supplied with energy-based models: DSM (–⋅⋅–), LDKM-B (—), and LDKM-G (○), along with the corresponding GDM (- - -). The wavelet-filtered DNS (◻) and unfiltered DNS (–⋅–) spectra are shown for comparison.

Image of FIG. 9.
FIG. 9.

Enstrophy spectra at : (a) LKM (—), DSM (–⋅–), and nonadaptive LES supplied with GDM (–⋅⋅–); (b) LDKM-B (—), LDKM-G (–⋅–), and nonadaptive LES supplied with LDKM-G (–⋅⋅–). The reference GDM (○) and wavelet-filtered DNS (◻) solutions are shown for comparison, along with the unfiltered DNS (- - -).

Image of FIG. 10.
FIG. 10.

LDKM-B solution of forced turbulence: resolved (–⋅–) and SGS (- - -) energy, along with the reference DNS solution (—).

Image of FIG. 11.
FIG. 11.

LDKM-B solution of forced turbulence: averaged energy spectrum (- - -) along with the reference DNS (—).

Image of FIG. 12.
FIG. 12.

Energy evolutions for LDKM-B solution of forced turbulence with initial SGS energy altered by a factor of either (–⋅–) or (- - -): (a) resolved and (b) SGS energy are reported along with the unaltered solution (—).

Tables

Generic image for table
Table I.

Summary of the different localized dynamic kinetic energy SGS models.

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/content/aip/journal/pof2/20/4/10.1063/1.2896283
2008-04-08
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Localized dynamic kinetic-energy-based models for stochastic coherent adaptive large eddy simulation
http://aip.metastore.ingenta.com/content/aip/journal/pof2/20/4/10.1063/1.2896283
10.1063/1.2896283
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