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Steady axisymmetric flow in an enclosed conical frustum chamber with a rotating bottom wall
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10.1063/1.2968222
/content/aip/journal/pof2/20/8/10.1063/1.2968222
http://aip.metastore.ingenta.com/content/aip/journal/pof2/20/8/10.1063/1.2968222
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic of flow system: (a) cylindrical chamber, original problem, (b) conical frustum chamber narrowing upward, and (c) conical frustum chamber widening upward.

Image of FIG. 2.
FIG. 2.

Comparison of the vortex breakdown boundaries between the present numerical results and Escudier’s experimental results.

Image of FIG. 3.
FIG. 3.

Contours of streamlines and angular momentum in the meridional plane of the convergent chamber; and : (a) , (b) , and (c) . Contour levels are nonuniformly spaced, with 30 positive levels and 30 negative levels .

Image of FIG. 4.
FIG. 4.

Contours of streamlines and angular momentum in the meridional plane of the divergent chamber; and : (a) , (b) , and (c) . Contour levels are nonuniformly spaced, with 30 positive levels and 30 negative levels .

Image of FIG. 5.
FIG. 5.

Contours of streamlines and angular momentum in the meridional plane of the divergent chamber; and : (a) , (b) , and (c) . Contour levels are nonuniformly spaced, with 30 positive levels and 30 negative levels .

Image of FIG. 6.
FIG. 6.

Swirling velocity along the axis, : (a) convergent chamber, , and as indicated; (b) divergent chamber, , and as indicated; (c) divergent chamber, , and as indicated.

Image of FIG. 7.
FIG. 7.

Contours of streamlines in the meridional plane of the divergent chamber, , : (a) and (b) . Contour levels are nonuniformly spaced, with 30 positive levels and 30 negative levels .

Image of FIG. 8.
FIG. 8.

Vortex breakdown boundary curves: (a) convergent chamber and (b) divergent chamber.

Image of FIG. 9.
FIG. 9.

Critical aspect ratio for the first onset of vortex breakdown as a function of the slope angle.

Image of FIG. 10.
FIG. 10.

Vortex breakdown boundary curves in terms of vs with as a parameter.

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/content/aip/journal/pof2/20/8/10.1063/1.2968222
2008-08-12
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Steady axisymmetric flow in an enclosed conical frustum chamber with a rotating bottom wall
http://aip.metastore.ingenta.com/content/aip/journal/pof2/20/8/10.1063/1.2968222
10.1063/1.2968222
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