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http://dx.doi.org/10.3744/SNAK.2018.55.1.75

An Experimental Study on Hydrodynamic Characteristics of a Control Fin for a Supercavitating Underwater Vehicle  

Jeong, So-Won (Department of Naval Architecture & Ocean Engineering, Chungnam National University)
Park, Sang-Tae (Department of Naval Architecture & Ocean Engineering, Chungnam National University)
Ahn, Byoung-Kwon (Department of Naval Architecture & Ocean Engineering, Chungnam National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.55, no.1, 2018 , pp. 75-82 More about this Journal
Abstract
Wedge-shaped fins are generally used to provide sufficient forces and moments to control and maneuver a supercavitating vehicle. There are four fins placed along the girth of the vehicle, near he tail: two of the fins are horizontal and the other two fins are vertical. In a fully developed supercavitating flow condition, a part of the fin is in a cavity pocket and the other is exposed to water. In this paper, experimental investigations of hydrodynamic characteristics of the wedge-shaped fin models are presented. Experiments were conducted at a cavitation tunnel of the Chungnam National University. We first closely observed the typical formation of wake cavitation and measured lift and drag forces acting on two different test models. Next, using a special device for generating natural and artificial supercavities, we investigated hydrodynamic forces at different cavitation number conditions. This work provides a basis for interpreting the cavity stability and hydrodynamic characteristics of the wedge-shaped control fin for a supercavitating vehicle.
Keywords
Cavitation; Natural supercavitation; Artificial supercavitation; Control fin;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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