The evolution of starting vortex and secondary separation on an elliptic cylinder |
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Authors: | Zhang Dieli |
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Institution: | (1) Institute of Mechanics, Academia Sinica, Taiwan |
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Abstract: | Flow visualization was used to investigate experimentally the evolution process from symmetrical shedding to staggered shedding
of the starting vortex and the phenomenon of secondary separation on an elliptic cylinder at moderate Reynolds numbers. The
vortex structure of the flow separation was studied. The temporal variation of separation angle and length of wake vortex
were given.
The photographs and experimental results provided basis for further investigation of the complicated feature of the starting
process of unsteady separated flows around an elliptic cylinder.
The project supported by the National Natural Science Foundation of China. |
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Keywords: | unsteady separated flows starting vortex secondary vortex secondary separation staggered shedding of vortex |
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