Hydrodynamic Analysis of Submarine of the Wave Glider

• DOI: 10.4028/www.scientific.net/amr.834-836.1505
• Publication Date: 2013-10-31T15:06:31Z
• Authors: Li Juan Jia; Xuan Ming Zhang; Zhan Feng Qi; Yu Feng Qin; Xiu Jun Sun
• Keywords: 0103 physical sciences; 14. Life underwater; 01 natural sciences; 7. Clean energy

Wave glider harvests the abundant ocean wave energy for long term ocean cruising due to its particular two-part architecture. Its submerged part named glider converts vertical fluctuation of waves to horizontally forward propulsion. Because of the uncertainty of the ocean condition and irregularity of its wave motion, the design parameters of the submerged glider vary in a confined range in the state of art design models. In order to indicate the hydrodynamic characteristics and summarize the dynamic law of the submerged glider with different design parameters, this paper concentrates on three critical design details: profile of the wings, interval space of the arrayed multiple flapping wings and maximum rotating angle of wings, and performs the corresponding CFD analysis. Finally, we conclude that the lift curve of NACA0006 and plate profile is almost the same with small waves at sea, but NACA0006 profile can generate much larger forward lift than the plate profile with seawater velocity up to 0.5m/s; Decreasing space of intermittent causes more obvious decrement of forward lift while space of intermittent overpasses the inflection point at 20cm; With the decrement of the maximum rotating angle, the forward lift occurs to take a sharp decline if the angle strides the inflection point.