The Influence of the Thrusting Force on the Characters of the High-Speed Flow Field
ZHU Zhu
YUAN Xu-long
WANG Ya-dong
Abstract：By using the commercial CFD software Fluent 6.3,the three-phase (water,air,vapour)flow field with natural cavitation was established.The UDF was used to resolve and control the missile's move-ment.It realized the numerical calculation of unsteady high-speed water-entry flow field,which consider natural cavitation as well as the missile's multiple degree of free movement.The Mixture was adopted as the multi-phase model;and the stand k-εmodel was used as the turbulence model;and SIMPLE and Stand-ard were used as pressure-velocity coupling method and discretizaion method respectively.The Layering was adopted as the dynamic mesh updating method and the UDF can output the parameters real time.In this paper,the missile high-speed water-entry flow field with 20°angle was simulated and analyzed,and the influence of the thrusting force on cavity development and the missile hydrodynamics were gained.
Keywords：flow fielddynamic gridhigh-speed water-entrymultiple degree of free movementthrusting force
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 10-14 )