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http://dx.doi.org/10.5574/KSOE.2017.31.1.008

Numerical Analysis of Cavity Characteristics and Thrust for Supercavitating Underwater Vehicle  

Kim, Dong-Hyun (School of Mechanical Engineering, Pusan National University)
Park, Warn-Gyu (School of Mechanical Engineering, Pusan National University)
Publication Information
Journal of Ocean Engineering and Technology / v.31, no.1, 2017 , pp. 8-13 More about this Journal
Abstract
Cavitation is used in various fields. This study examined the drag reduction of an underwater vehicle using cavitation. In this study, the natural partial cavitation analysis results were verified using CFD code with the Navier-Stokes equation based on a mixture model. The momentum and continuity equations in the mixture phase were separately solved in the liquid and vapor phases. The solver employs an implicit preconditioning algorithm in curvilinear coordinates. The results of a computational analysis showed good agreement with the experiment. A computational analysis was also performed on the supercavity. The study investigated the cavity characteristics and drag of an underwater vehicle and studied the speed required to achieve a supercavity. Finally, a 1DOF analysis was carried out to investigate the thrust system for a supercavity. As a result, one of the methods for determining a suitable thrust system for a supercavitating underwater vehicle was presented.
Keywords
Cavity; Supercavity; Underwater vehicle; Thrust; 1DOF;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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