Experimental Investigation on Longitudinal Motion of High-Speed Unmanned Surface Vehicle

Abstract

Abstract: In order to predict the high-speed unmanned surface vehicle (USV) longitudinal motions, model test was conducted in calm water on the ship. The flow field around the USV was numerically solved by the finite volume method in conjunction with the shear stress transpor (SST) turbulence model, which is based on dynamic mesh method. The drag force and trim angle acting on the hull were obtained. The computational and tested results appeared similar changing tendency. The result shows that the numerical method can give good accuracy. Then the effect of the different longitudinal positions of the center of gravity on propulsion performance was discussed. Moving the longitudinal center of gravity forward is beneficial to reduce the first crest amplitude of resistance and avoid porpoising, at the same time, the top speed is reducing.

Key words: unmanned surface vehicle (USV), dynamic mesh, numerical calculation, model test

CLC Number:

U 661.3

SUN Han-Bing-1, SU Yu-Min-1, ZOU Jin-1, ZHANG Ke-Xin-2, ZHUANG Jia-Yuan-1. Experimental Investigation on Longitudinal Motion of High-Speed Unmanned Surface Vehicle[J]. Journal of Shanghai Jiaotong University, 2013, 47(02): 278-283.

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