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http://dx.doi.org/10.5916/jkosme.2015.39.3.243

Characteristics of Fluid Force Reduction of a Square Prism With a Small Triangular Prism  

Ro, Ki-Deok (Department of Mechanical System Engineering.Institute of Agriculture & Life Science, Gyeongsang Nationak University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.39, no.3, 2015 , pp. 243-247 More about this Journal
Abstract
The characteristics of the fluid force reduction of a square prism having a small triangular prism at the upstream side was investigated by measuring of lift and drag on the square prism The experimental parameters were the width ratios (H/B=0.2~0.6) of triangular prisms to the prism width and the gap ratios (G/B=0~3) between the square prism and the triangular prism. The drag reduction rate of the square prism was increased and then decreased with G/B in case of the same H/B, and was increased with H/B in case of the same G/B. The maximum drag reduction rate was represented by 78.5% at H/B=0.6 and G/B=1.5. The lift reduction rate of the square prism was hardly not affected by the width and gaps ratios, the average value was about 52.4%.
Keywords
Fluid force reduction; Separated flow; Unsteady flow; Square prism; Flow control; Triangular prism;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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