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http://dx.doi.org/10.5916/jkosme.2016.40.3.205

Investigation of flowfield characteristics of a square prism having a front triangular prism by PIV  

Ro, Ki-Deok (Department of Mechanical System Engineering.Institute of Marine Engineering, Gyeongsang Nationak University)
Kim, Jae-Dong (Institute of Marine Engineering)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.40, no.3, 2016 , pp. 205-209 More about this Journal
Abstract
The flowfield characteristics of a square prism having a small triangular prism at the upstream side were investigated by visualizing the flow field using PIV. The ratio of the width of the triangular prism to that of the square prism and the gap ratios between the square and triangular prisms were selected as the experimental parameters. The results are summarized as follows. The Strouhal number measured on the wake side of the square prism, which had the same characteristics as the drag reduction rate, increased, and then decreased with the gap ratio for the same width ratio. For a square prism having a small triangular prism, the stagnation regions were represented at the upstream and downstream sides of the square prism. The size of the stagnation region increased with the width ratio at the upstream side of the square prism, and decreased at the downstream side.
Keywords
Fluid force reduction; PIV; Square prism; Flow control; Triangular prism;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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