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http://dx.doi.org/10.3795/KSME-B.2008.32.7.536

The Flow Characteristics Around Airfoil Moving Reciprocally in a Channel  

Ro, Ki-Deok (경상대학교 기계항공공학부 해양연구산업연구소)
Kim, Kwang-Seok (경상대학교 대학원 기계시스템공학과)
Kim, Jong-Hyeon (경상대학교 대학원 기계시스템공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.32, no.7, 2008 , pp. 536-541 More about this Journal
Abstract
The Flow characteristics of a ship's propulsion mechanism of Weis-Fogh type, in which a airfoil(NACA0010) moves reciprocally in a channel, were investigated by the PIV. Velocity vectors and velocity profiles around the operating and stationary wings were observed at opening angles of ${\alpha}=15^{\circ}$ and $30^{\circ}$, velocity ratios of $V/U=0.5{\sim}1.5$ and Reynolds number of $Re=0.52{\times}104{\sim}1.0{\times}104$. As the results the fluid between wing and wall was inhaled in the opening stage and was jet in the closing stage. The wing in the translating stage accelerated the fluid in the channel. And the flow fields of this propulsion mechanism were unsteady and complex, but those were clarified by flow visualization using the PIV.
Keywords
Fluid Machinery; Propulsion Mechanism; Flow Visualization; PIV; Unsteady Flow;
Citations & Related Records

Times Cited By SCOPUS : 2
연도 인용수 순위
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