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CFD analysis of the dynamic behavior of supercavitating vehicle in the longitudinal plane
Author(s): 
Pages: 370-376
Year: Issue:  4
Journal: Journal of Ship Mechanics

Keyword:  hydromechanicssupercavitating vehicledynamic behavior;
Abstract: Numerical simulation research on the stability of supercavitating vehicle and trajectory is the basis of designing control and guidance system of supercavitating vehicle. In this paper, based on the mul-tiphase flow URANS (Unsteady Reynolds Averaged Navier-Stokes) equations and the kinematical equation of the rigid body in the longitudinal plane, the three-dimensional dynamics simulation model of supercavi-tating vehicle is established. On this basis, the dynamic behavior of supercavitating vehicle is simulated in the cruising state. The results show that the supercavitating vehicle without control may still be stable to some extent, and fins can effectively decrease the time which the vehicles take to be stable and make the vehicle locate in supercavity as a stable motion mode.
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