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A compressible wall-adapting similarity mixed model for large-eddy simulation of the impinging round jet
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10.1063/1.3068761
/content/aip/journal/pof2/21/3/10.1063/1.3068761
http://aip.metastore.ingenta.com/content/aip/journal/pof2/21/3/10.1063/1.3068761

Figures

Image of FIG. 1.
FIG. 1.

Schematic of the flow configuration and position of the coordinate system.

Image of FIG. 2.
FIG. 2.

test case (coarse grid). Streamwise average velocity (a); streamwise fluctuating velocity (b); wall-normal fluctuating velocity (c); and turbulent shear stress (d); (—) WSM; (– – –) WALE; LDSM; (○) HWA measures (Ref. 23).

Image of FIG. 3.
FIG. 3.

test case (coarse grid). Turbulent kinetic energy : (—) WSM; (– – –) WALE; LDSM; (○) HWA measures (Ref. 23).

Image of FIG. 4.
FIG. 4.

test case (coarse grid). Average wall-normal velocity (a) and average radial velocity (b). (—) WSM; LDSM; PIV measures (Ref. 25); (◻) LDA measures (Ref. 25).

Image of FIG. 5.
FIG. 5.

test case (coarse grid). RMS wall-normal velocity (a) and RMS radial velocity (b). (—) WSM; LDSM; PIV measures (Refs. 24 and 25); (◻) LDA measures (Refs. 24 and 25); (○) HWA measures (Ref. 23).

Image of FIG. 6.
FIG. 6.

Average value of over horizontal planes: (—) test case C1 (coarse grid); test case C2 (refined grid); (– – –) test case C3.

Image of FIG. 7.
FIG. 7.

test case. Streamwise average velocity (a); streamwise fluctuating velocity (b); wall-normal fluctuating velocity (c); and turbulent shear stress (d); (—) WSM on highly refined grid (C2); (– – –) WSM on coarse grid (C1); WALE on highly refined grid (C2); LDSM on highly refined grid (C2); (○) HWA measures (Ref. 23); (◻) LDA measures (Refs. 24 and 25).

Image of FIG. 8.
FIG. 8.

test case. Streamwise average velocity (a); streamwise fluctuating velocity (b); wall-normal fluctuating velocity (c); and turbulent shear stress (d); (—) resolved fluctuations; resolved fluctuations plus SGS contributions; (○) HWA measures (Ref. 23).

Image of FIG. 9.
FIG. 9.

test case. Turbulent kinetic energy : (—) resolved fluctuations; resolved fluctuations plus SGS contributions; (○) HWA measures (Ref. 23).

Image of FIG. 10.
FIG. 10.

test-case C1 (coarse grid). Localization of regions (colored in black) of negative [Eq. (93)] over horizontal planes at different heights: (a), (b), (c), (d), (e), and (f). Circles in (a) indicate radial distances in steps of .

Image of FIG. 11.
FIG. 11.

test case C2 (refined grid). Localization of regions (colored in black) of negative [Eq. (93)] over horizontal planes at different heights: (a), (b), (c), (d), (e), and (f). Circles in (a) indicate radial distances in steps of .

Image of FIG. 12.
FIG. 12.

Maps of normalized SGS energy transfer coefficient over a horizontal plane located at for on coarse grid C1 (a) and for (b). The black contours indicate regions of energy backscatter.

Image of FIG. 13.
FIG. 13.

test case C2 (refined grid): map of normalized SGS energy transfer coefficient over an horizontal plane located at . The black contours indicate regions of energy backscatter.

Image of FIG. 14.
FIG. 14.

test case. Maps of normalized SGS energy transfer coefficient (same scale as in Fig. 12) over a vertical plane in the range , . The black contours: (a) regions of reverse energy transfer, (b) intense strain, and (c) vorticity.

Image of FIG. 15.
FIG. 15.

Tridimensional visualization of the flow at on coarse grid C1 (a) and at (b): isosurfaces of passive scalar (center), isocontours of (left), and passive scalar map (right) over axial planes.

Image of FIG. 16.
FIG. 16.

test case C1: maps of passive scalar over a horizontal plane at (a) and (b).

Image of FIG. 17.
FIG. 17.

test case C3: maps of passive scalar over a horizontal plane at (a) and (b).

Image of FIG. 18.
FIG. 18.

Explicit filtering volume in two dimensions.

Tables

Generic image for table
Table I.

Air properties.

Generic image for table
Table II.

Computational grid properties.

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/content/aip/journal/pof2/21/3/10.1063/1.3068761
2009-03-06
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A compressible wall-adapting similarity mixed model for large-eddy simulation of the impinging round jet
http://aip.metastore.ingenta.com/content/aip/journal/pof2/21/3/10.1063/1.3068761
10.1063/1.3068761
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