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Flip-Flop Flow Control inside Streamwise Diverging Diamond-Shaped Cylinder Bundles with Concavities

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DOI: 10.4236/jfcmv.2013.13010    2,992 Downloads   5,546 Views   Citations


The flow visualization work with the aid of PIV and Piezometer deals with flip-flop flow around diamond-shaped cylinder bundle revised with concavities on both bundle walls. It is disclosed that 1) the concavity constructed on both side-walls of a diamond cylinder induces a substantial change in the flow patterns in the exit jet-stream field and jet- stream dispersion, 2) pressure characteristics are quantitatively measured in a diverging-flow region in diamond cylinder bundles with concavityand in its downstream region, and 3) flip-flop flow occurs in the flow passages and its occurrence condition is obtained.

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The authors declare no conflicts of interest.

Cite this paper

S. Torii and S. Umeda, "Flip-Flop Flow Control inside Streamwise Diverging Diamond-Shaped Cylinder Bundles with Concavities," Journal of Flow Control, Measurement & Visualization, Vol. 1 No. 3, 2013, pp. 77-85. doi: 10.4236/jfcmv.2013.13010.


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