Proceedings of the Korean Society of Marine Engineers Conference (한국마린엔지니어링학회:학술대회논문집)
- 2012.06a
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- Pages.157-157
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- 2012
Drag Reduction on a Square Prism Using a Detached Splitter Plate
분리된 분할판에 의한 정방형주의 항력감소
Abstract
The Characteristics of the drag reduction of a square prism having a detached splitter plate at the wake side was investigated by measuring of fluid force on the square prism and by visualization of the field using PIV. The experimental parameters were the width ratios(H/B=0.5~1.5) of splitters to the prism width and the gap ratios (G/B=0~2) between the prism and the splitter plate. The drag reduction rate was increased with H/B, and was increased and decreased with G/B. The maximum drag reduction rate was represented by 24.2% at H/B=1.5 and G/B=0.5. The two vortices were generated by the splitter plate at the wake region of the prism. The direction of the vortex was clockwise at the upside of the splitter plate and counterclockwise at the downside.
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