전산유체역학을 이용한 잠수함 조종성능 예측 연구

Abstract

The Reynolds-averaged Navier-Stokes(RANS) method is applied to achieve the maneuvering coefficients for the practical submarine hull form with appendages. The multiblock finite volume CFD (Computational Fluid Dynamics) code WAVIS developed at KRISO is used for computations of turbulent flows around a fully appended submarine. The main features of the code are the use of the cartesian velocity components as principal unknowns, block structured finite volume discretization, a pressure correction scheme (SIMPLEC), two-equation turbulence model, and collocated grid arrangement with Rhie and Chow interpolation. The static VPMM (Vertical Planar Motion Mechanism) tests for a 3000-ton class submarine model named Coelacanth II are simulated and compared with the experimental data.