Hydrodynamic analyses of typical underwater gliders

• Published in: Journal of hydrodynamics. Series B 2015-10, Vol.27 (4), p.556-561
• Main Author: 陈亚君 陈红勋 马峥
• Format: Article
• Language: English
• Subjects: Engineering; Engineering Fluid Dynamics; Hydrology/Water Resources; Numerical and Computational Physics; Simulation; the drag; the energy consumption; the power conversion ratio; the underwater glider; 传输效率; 水下; 水动力分析; 滑翔机; 经营范围; 能量消耗; 重力势能; 重量分布
• ISSN: 1001-6058; 1878-0342
• DOI: 10.1016/S1001-6058(15)60516-9

The underwater glider changes its weight and the weight distribution through the battery use, to move up and down and forward in the sea. It enjoys many advantages such as a long endurance, and a long operational range with its unique device. The performance of the underwater glider can not evaluated only by the drag, the energy consumption is also one of the key factors. In this paper, the power conversion ratio is proposed according to the transfer efficiency from the gravitational potential energy to the available work, and the performances of three typical underwater gliders are evaluated from multi-angles, such as the drag, the power conversion ratio and the barycenter＇s offset. So the glide performance and the energy consumption in various motion states can be analyzed. The results of this paper can provide a theoretical basis for further study of underwater gliders.