Research on hydrodynamic characteristics of the geometric shape of submarine fairwater fillet
The geometric shape of submarine fairwater the had an important influence on the hydrodynamic character-istics of the submarine.In this article,based on the fully appended SUBOFF model,the RNG k-ε turbulence model was used to numerically calculate the winding field of SUBOFF model with three different types of fairwater fillet to study the ef-fect of geometric shape of fairwater on the generation and intensity of horseshoe vortices near the fairwater and wake flow field of the submarine.The results show that the smooth and excessive fairwater fillet effectively suppressed the generation of horseshoe vortex and reduced the inhomogeneity of the velocity component of the wake flow.The submarine model with convex fairwater fillet achieved the best results with a maximum reduction of 24.5％in the inhomogeneity of the flow velo-city components at the wake flow field.
submarinefairwater fillethorseshoe vortexsubmarine wake
NETL
NSTL
万方数据
