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High-Reynolds-number simulation of turbulent mixing
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10.1063/1.2001690
/content/aip/journal/pof2/17/8/10.1063/1.2001690
http://aip.metastore.ingenta.com/content/aip/journal/pof2/17/8/10.1063/1.2001690
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The third-order velocity structure function scaled according to Kolmogorov’s relation [see Eq. (1)] at , 400, and 700 (triangles, circles, and squares, respectively). The dashed line of slope 2 gives the small asymptote where is the velocity gradient skewness.

Image of FIG. 2.
FIG. 2.

Scalar spectrum according to Obukhov-Corrsin scaling in DNS at and (triangles) and 1 (circles). The dashed line at 0.67 is for comparison with experiment (see Ref. 13).

Image of FIG. 3.
FIG. 3.

Mixed velocity-scalar structure function scaled according to the Yaglom relation [see Eq. (3)] for at the same as in Fig. 1. A dashed line of slope 2 gives the small asymptote [see Eq. (12) in Ref. 12].

Image of FIG. 4.
FIG. 4.

Skewness and flatness factors of scalar gradient component fluctuations at different . at (triangles), at (circles), and at (squares).

Image of FIG. 5.
FIG. 5.

(Color online). Spatial distribution of the scalar dissipation rate for shown as elevated surfaces for three chosen grid planes in the simulation.

Image of FIG. 6.
FIG. 6.

PDFs of energy dissipation rate (▵), enstrophy (◻), and scalar dissipation rate at (▴) and 1 (●) from (top) DNS at and (bottom) DNS at . All variables are normalized by the mean.

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/content/aip/journal/pof2/17/8/10.1063/1.2001690
2005-08-04
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High-Reynolds-number simulation of turbulent mixing
http://aip.metastore.ingenta.com/content/aip/journal/pof2/17/8/10.1063/1.2001690
10.1063/1.2001690
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