Title :
Flying wing underwater glider: Design, analysis, and performance prediction
Author :
Wang Zihao ; Li Ye ; Wang Aobo ; Wang Xiaobing
Author_Institution :
State Key Lab. of Autonomous Underwater Vehicle, Harbin, China
Abstract :
Underwater glider is the new class of autonomous underwater vehicle which has been used for ocean observation and wide range of marine environment monitoring. The legacy gliders have low lift-drag ratio (L/D) and limited gliding efficiency because the hull generates barely lift force. To solve the problem of low lift-drag ratio, we developed an underwater glider (HFWUG) based on the flying wing design. Firstly, we have a preliminary discussion on the configuration optimization of the HFWUG, optimizing shape design from four schemes by using Computational fluid dynamics code. Then, the steady-state glide equation is presented and solved numerically for given net-buoyancy and pitch angle in various navigation states. Spider plot of gliding performance prediction is provided which contains all the information defining the performance of the glider. The results show that the underwater glider based on flying wing design can enhance the gliding efficiency by getting high lift-drag ratio.
Keywords :
autonomous underwater vehicles; computational fluid dynamics; design engineering; drag; HFWUG configuration optimization; autonomous underwater vehicle; computational fluid dynamic code; flying wing underwater glider design; gliding efficiency; gliding performance prediction; legacy gliders; lift force; lift-drag ratio; marine environment monitoring; navigation states; net-buoyancy; ocean observation; optimizing shape design; pitch angle; spider plot; steady-state glide equation; Automotive components; Computational fluid dynamics; Drag; Hydrodynamics; Mathematical model; Shape; Steady-state; duration; flying wing; lift-drag ratio; optimization; underwater glider;
Conference_Titel :
Control, Automation and Robotics (ICCAR), 2015 International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-7522-1
DOI :
10.1109/ICCAR.2015.7166005