Numerical Analysis of Supercavitating Flows Based on Viscous/Inviscid Method

Ahn, Byoung-Kwon; Kim, Ji-Hye; Choi, Jung-Kyu; Kim, Hyoung-Tae; Nah, Young-In; Lee, Do-Hyung

doi:2014.17.1.25

J. KIMS Technol > Volume 17(1); 2014 > Article

Journal of the Korea Institute of Military Science and Technology 2014;17(1):25-32.
DOI: https://doi.org/10.9766/KIMST.2014.17.1.025

Numerical Analysis of Supercavitating Flows Based on Viscous/Inviscid Method

Byoung-Kwon Ahn, Ji-Hye Kim, Jung-Kyu Choi, Hyoung-Tae Kim, Young-In Nah, Do-Hyung Lee

¹Department of Naval Arch. & Ocean Eng, Chungnam University
²Technology Policy Division, Agency for Defense Development
³The 4th Research and Development Institute, Agency for Defense Development

점성 및 비점성 해석법을 이용한 초월공동 유동 수치해석

안병권, 김지혜, 최정규, 김형태, 나영인, 이도형

¹충남대학교 선박해양공학과
²국방과학연구소 정책기획부
³국방과학연구소 제4기술연구본부

Abstract

Recently supercavitating torpedo has been studied because of its high-speed performance as the next generation of underwater weapon systems. In this study, we present a numerical method based on the potential flow. Characteristic features of the shape of supercavities and drag forces are investigated. In addition, we introduce a viscous-potential method to compensate for the effects of viscosity. The results are compared with viscous calculations using a commercial package, FLUENT V13.

Key Words: Cavitator, Supercavitation, Inviscid Flow, Viscous Flow, Viscous-Potential Flow