A study on vortex shedding from spheres in uniform flow
A study on vortex shedding from spheres in uniform flow
A study on vortex shedding from spheres in uniform flow
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Vortex<br />
<strong>shedd<strong>in</strong>g</strong><br />
Orientati<strong>on</strong><br />
of the wake<br />
C<strong>on</strong>figurati<strong>on</strong><br />
of the wake<br />
Regi<strong>on</strong><br />
Reynolds<br />
number<br />
Table 1 Classificati<strong>on</strong> of <strong>vortex</strong> <strong>shedd<strong>in</strong>g</strong> pattern with respect to change<br />
of Reynolds number<br />
No <strong>vortex</strong><br />
<strong>shedd<strong>in</strong>g</strong><br />
Periodic <strong>vortex</strong> <strong>shedd<strong>in</strong>g</strong> No periodic 7<br />
<strong>vortex</strong> <strong>shedd<strong>in</strong>g</strong><br />
One Rot l<strong>in</strong>g I Irregular rotati<strong>on</strong> of the plane<br />
way|<br />
c<strong>on</strong>ta<strong>in</strong><strong>in</strong>g the wake<br />
Rotati<strong>on</strong> about<br />
strearnwise axis<br />
<strong>in</strong>g<br />
Wav<strong>in</strong>g wake<br />
Fixed <strong>vortex</strong> Vortex loop Vortex tube<br />
fi-shaped <strong>vortex</strong><br />
No <strong>vortex</strong><br />
/ <strong>shedd<strong>in</strong>g</strong> regi<strong>on</strong> 1 AI m<br />
I* 5 6 7 8 9.<br />
10 3 4 5 6 7 8 91n6<br />
hairp<strong>in</strong>-shaped <strong>vortex</strong> observed <strong>in</strong> the low Reynolds number<br />
regi<strong>on</strong> (Re < 800) whose model is shown <strong>in</strong> Fig. 8(d). Its structure<br />
has not yet been sufficiently clarified through detailed<br />
measurement c<strong>on</strong>cern<strong>in</strong>g the structure of the turbulent wake<br />
beh<strong>in</strong>d the sphere. Therefore, it would be desirable to c<strong>on</strong>t<strong>in</strong>ue<br />
the <strong>in</strong>vestigati<strong>on</strong> of the structure of the turbulent wake beh<strong>in</strong>d<br />
the sphere,<br />
(vi) Transiti<strong>on</strong>al Regi<strong>on</strong> C (3 x 10 3
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