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http://dx.doi.org/10.3795/KSME-B.2010.34.6.649

Flow Characteristics of WIG-Effect Vehicle with Direct-Underside-Pressurization System and Propeller  

Lee, Ju-Hee (Dept. of Mechatronics Engineering, Hoseo Univ.)
Kim, Byeong-Sam (Dept. of Automotive Engineering, Hoseo Univ.)
Park, Kyoung-Woo (Dept. of Mechanical Engineering, Hoseo Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.34, no.6, 2010 , pp. 649-654 More about this Journal
Abstract
A three-dimensional numerical study of the WIG-effect vehicle with a direct-underside-pressurization (DUP) system and a propeller is performed to analyze the aerodynamic forces and moments acting on the vehicle. The computational model includes all the compartments of a WIG-effect vehicle, including a propeller in the middle of the fuselage and an air chamber under the fuselage. The DUP system and propeller help considerably reduce the take-off speed and minimize the effect of the hump drag when the vehicle accelerates to take off on water. The airflow is accelerated by a propeller, and the air then enters the air chamber through a channel in the middle of the fuselage, this air helps increase the lift since the dynamic pressure of air is converted to static pressure. However, the air accelerated by the propeller produces excessive drag and creates yawing moment. It is found that the effect of yawing and rolling moments on static stability is negligible.
Keywords
Aerodynamic Characteristics; CFD; DUP(Direct Underside Pressurization); Ground Effect; Wing-In-Ground Effect Vehicle(WIG); Yawing and Rolling Moment;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 1
연도 인용수 순위
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