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Acta Armamentarii ›› 2017, Vol. 38 ›› Issue (5): 949-958.doi: 10.3969/j.issn.1000-1093.2017.05.015

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Numerical Research on Interaction between Control Surfaces and Main Cavity of Supercavitating Vehicles

ZHOU Hou-cun, XIANG Min, ZHANG Wei-hua   

  1. (College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, Hunan, China)
  • Received:2016-07-18 Revised:2016-07-18 Online:2017-07-03

Abstract: The homogeneous multiphase model and volume of fluid (VOF) method are used to simulate the interaction between control surface and main cavity of supercavitaing vehicle (SCV) under different flow patterns of cavity and angles of attack of control surface. Numerical result shows that the vehicle cavity shape affects the submersion depth of the control surfaces, and the variation of submersion depth is up to above 50 percent. The hydrodynamics of control surface is obviously affected by the variation of submersion depth. The length of main cavity is enlarged by 3 percent in average due to the presence of control surface, the cross shape of main cavity could be significantly changed when there is an angle of attack of the control faces, and the cavity shape of SCV experienced a worst deformation under a base closure cavity flow pattern. The interaction between control surface and main cavity of supercavitating vehicle should be taken into consideration during the design process of cavity flow pattern and control law. Key

Key words: fluidmechanics, supercavitatingvehicle, cavityflowpattern, controlsurface, cavity, interaction

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