A Study on the Motion Analysis and Design Optimization of a Ducted Type AUV (Autonomous Underwater Vehicle) by Using CFD (Computational Fluid Dynamics) Analysis

J. Ocean Eng. Technol. 2009;23(1):48-53.

Joung Tae-Hwan,Sammut Karl,He Fangpo,Lee Seung-Keon

School of Computer Science Engineering and Mathematics Faculty of Science & Engineering Flinders University,School of Computer Science Engineering and Mathematics Faculty of Science & Engineering Flinders University,School of Computer Science Engin

CFD 해석을 이용한 덕트형 자율무인잠수정의 운동해석 및 설계 최적화에 관한 연구

정태환,이승건

부산대학교 공과대학 조선해양공학과

Keywords: Autonomous underwater vehicle, Computational fluid dynamics, Optimum design, Drag force, Drag coefficient

핵심용어: 심해용 자율무인잠수정, 전산유체역학, 최적설계, 항력, 항력계수

Abstract

Autonomous Underwater Vehicles (AUV's) provide an important means for collecting detailed scientific information from the ocean depths. The hull resistance of an AUV is an important factor in determining the power requirements and range of the vehicle. This paper describes a design method that uses Computational Fluid Dynamics (CFD) to determine the hull resistance of an AUV under development. The CFD results reveal the distribution of the hydrodynamic values (velocity, pressure, etc.) of an AUV with a ducted propeller. This paper also discusses the optimization of the AUV hull profile to reduce the total resistance. This paper demonstrates that shape optimization in a conceptual design is possible by using a commercial CFD package. Optimum design work to minimize the drag force of an AUV was carried out, for a given object function and constraints.