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http://dx.doi.org/10.5916/jkosme.2013.37.5.493

An experimental study on the flow characteristics around to changes in the angle of the wedge type structure by free fall  

Oh, Seung-Jin (Division of Marine Engineering, Graduate School, Mokpo National Maritime University)
Cho, Dae-Hwan (Faculty of Marine Engineering, Mokpo National Maritime University)
Abstract
This paper presents are experimental investigation to figure out impact pressure and flow characteristics of a wedge type structure in free fall. The flow field has been obtained by 2-frame grey level cross correlation PIV(Particle Image Velocimetry) method, the impact pressure of free fall structure by a pressure acquisition system apply to Dewetron system. The angles between a model and the free surface are adapted $15^{\circ}$, $25^{\circ}$, $35^{\circ}$ and $45^{\circ}$ respectively. Velocity field of water exit has higher better than water entry. The impact pressure under the bottom of the model has been appeared higher values at $15^{\circ}$ than $45^{\circ}$, and also at P1.
Keywords
Free Fall; Impact Pressure; Flow Field; Water Entry; Water Exit;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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