CFD 해석을 이용한 덕트형 자율무인잠수정의 운동해석 및 설계 최적화에 관한 연구

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 23; no. 1; pp. 48 - 53
• Main Authors: 정태환(Tae-Hwan Joung), Karl Sammut, Fangpo He, 이승건(Seung-Keon Lee)
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2009
• Subjects: 해양공학; Autonomous underwater vehicle 심해용 자율무인잠수정; Optimum design 최적설계; Drag force 항력; Camputational fluid dynamics 전산유체역학; Drag coefficient 항력계수
• ISSN: 1225-0767; 2287-6715

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.