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http://dx.doi.org/10.9766/KIMST.2017.20.4.467

Impact Analysis on Water Entry of Gliding Vehicle using Finite Element Method  

Kim, Changyu (The 2nd Aircraft PMO, Agency for Defense Development)
Hwang, Youngeun (The 2nd Aircraft PMO, Agency for Defense Development)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.20, no.4, 2017 , pp. 467-473 More about this Journal
Abstract
In this paper, impact characteristics of a water entry gliding vehicle were analyzed using a finite element method. To guarantee the validity of analysis results, a convergence test was performed for several ratios of Euler and Largrange mesh sizes. The impact coefficient was calculated with respect to entry angles and angle of attacks. It can be observed that the impact coefficient was large at a high cross-section gradient and was also affected by cavitation. This study could be useful in the preliminary design stage of a water entry bomb development.
Keywords
Gliding Vehicle; Fluid-Structure Interaction; Finite Element Method; Cavitation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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