A Study on Design Constraints of a Supercavitating Underwater Vehicle

- Journal title : Journal of the Society of Naval Architects of Korea
- Volume 53, Issue 1, 2016, pp.54-61
- Publisher : The Society of Naval Architects of Korea
- DOI : 10.3744/SNAK.2016.53.1.54

Title & Authors

A Study on Design Constraints of a Supercavitating Underwater Vehicle

Kim, Seonhong; Kim, Nakwan;

Kim, Seonhong; Kim, Nakwan;

Abstract

This paper defines the design constraint in consideration of the dynamic characteristics and stability in the longitudinal direction of a supercavitating vehicle. Available range of the design variables is calculated by numerical simulation and the cavity modeling of vehicle dynamics is performed first. Configuration parameters of the supercavitating vehicle to determine the vehicle dynamics and characteristics of the cavity are defined as design variables. Design constraints are supercavitation, trim velocity, stability and vehicle dynamics in transition phase. Numerical results show that in accordance with the change of the design variables, the proposed design constraints reflect the physical characteristics of the supercavitating vehicle. This research finds the design region where the constraints of supercavity and the trim velocity are satisfied, and the stability analysis refines the design results by excluding the region where the stability is not guaranteed. The stability analysis is particularly important for a vehicle with the short fin span.

Keywords

Supercavitating underwater vehicle;Design constraints;Design variables;Stability constraint;

Language

Korean

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