Study on Propulsion Performance of Three-dimensional Passive Swinging Hydrofoil on Wave Glider

doi:10.3901/JME.2020.08.243

Abstract

Abstract: A three-dimensional simulation is carried out to analyze the coupled motion and hydrodynamic force of the hydrofoil, in order to predict the propulsion force generated by hydrofoils in the motion of wave glider. To model the wave-induced heave and passive swing of hydrofoil, the planar motion mechanism (PMM) module in CFD analysis software Star-CCM+ is used. By analyzing the propulsion force generated by hydrofoil during its motion, influences of wave parameters (wave height, period) and structural parameter (aspect ratio) on propulsion performance are investigated. Results of simulation show that under the condition of the same wave height, the angular velocity of hydrofoil is inversely proportional to the wave period. The forward average thrust coefficient of hydrofoil is inversely proportional to the square of the wave period, and increases quadratically with the wave height increasing. Average thrust coefficient is increased when increasing aspect ratio, but the effect is not very obvious.

Key words: wave glider, hydrofoil, propulsion force, coupled motion, wave parameters, structural parameters

CLC Number:

TK79

HU Feng, ZHAO Wentao, HUANG Yan, YU Jiancheng, ZHAO Baode, CUI Jian. Study on Propulsion Performance of Three-dimensional Passive Swinging Hydrofoil on Wave Glider[J]. Journal of Mechanical Engineering, 2020, 56(8): 243-249.

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