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Validity of quasinormal approximation in turbulent channel flow
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10.1063/1.1886746
/content/aip/journal/pof2/17/5/10.1063/1.1886746
http://aip.metastore.ingenta.com/content/aip/journal/pof2/17/5/10.1063/1.1886746
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color). Contours of measures of error in the quasinormal approximation as functions of streamwise separations and wall-normal distances , in wall units. Shown are (a) , (b) , (c) , and (d) . See (6) and (7) for definitions.

Image of FIG. 2.
FIG. 2.

(Color). Same as Fig. 1, but for separation vectors along the spanwise direction (abscissa). Contours of (a) , (b) , (c) , and (d) are shown above.

Image of FIG. 3.
FIG. 3.

(Color). Contours of (a) , (b) , (c) , and (d) for separation vectors in the wall-normal direction.

Image of FIG. 4.
FIG. 4.

Quasinormal errors in isotropic turbulence vs radial separations, normalized by the Kolmogorov length scale . The subscript denotes the direction parallel to the separation vector, whereas and denote directions orthogonal to the separation vector and each other.

Image of FIG. 5.
FIG. 5.

Comparison of the three-dimensional energy spectra for (finite-volume) filtered DNS data, optimal LES (OLES) model based solely on DNS data and OLES model using quasinormal approximation for fourth-order correlations.

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/content/aip/journal/pof2/17/5/10.1063/1.1886746
2005-04-29
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Validity of quasinormal approximation in turbulent channel flow
http://aip.metastore.ingenta.com/content/aip/journal/pof2/17/5/10.1063/1.1886746
10.1063/1.1886746
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