Research on Hydrodynamic Characteristics of Submarine Launched Vehicle with Ventilation Holes

doi:10.3969/j.issn.1000-1093.2013.11.013

Abstract

Abstract: Based on the theory of homogeneous equilibrium flow, the threedimensional numerical simulation research on the hydrodynamic characteristics of submarinelaunched vehicle with ventilation holes of gaswatervapor threephase is conducted by solving the RANS equations of mixture media, SST turbulence transport equations and the mass transport equations among phases. The cavity shape, pressure distribution and change of drag force in the case of different numbers of ventilation holes are compared and analyzed. The results show that the cavity dimension formed by a single hole decreases, and the whole cavity shape is integrated gradually from discrete distribution with the increase in the numbers of ventilation holes; the maximum pressure of the upwind surface decreases with the increase in the numbers of ventilation holes, and the surface pressure fluctuates along the velocity direction; the total drag coefficient decreases with the increase in the numbers of ventilation holes, and the hydrodynamic characteristics of submarinelaunched vehicle could be improved by increasing the numbers of ventilation holes.

Key words: fluid mechanics, submarine launched vehicle, ventilation hole, cavity shape, hydrodynamics

CLC Number:

TJ762.4

SUN Tie-zhi, WEI Ying-jie, WANG Cong, CAO Wei. Research on Hydrodynamic Characteristics of Submarine Launched Vehicle with Ventilation Holes[J]. Acta Armamentarii, 2013, 34(11): 1424-1430.

References

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