Summaries to Technical Papers of Annual Meeting, Japan Association for Wind Engineering
Summaries to Technical Papers of Annual Meeting, Japan Association for Wind Engineering
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Host: Japan Association for Wind Engineering

Development and collapse of the pair of conical vortices on a surface of a cube
*Hiromasa Kawai, Yasuo Okuda, Masamiki Ohashi
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Keywords: Conical vortex, 3 dimensiional PIV measurement, smooth flow, Flow switching phenomena, Cube, Separated shear layer, Oblique flow
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Pages 119

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Abstract
Conical vortex formed on a upper surface of a cube in a smooth flow has been investigated by a 3 dimensional PIV system. According to the analysis of the PIV data sampled every 500Hz, the strength of the conical vortex at the one side is always greater than that at the other side. The pair of the conical vortex sways in a body. The stronger conical vortex at the one side goes down just after the cube, and then the strong down flow goes around the vortex.
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© 2011 Japan Association for Wind Engineering
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