Volume Fraction 기법에 의한 자유표면파 형상 연구
Study on the Shape of Free Surface Waves by the Scheme of Volume Fraction
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
To obtain the shape of the free surface more accurately, computations are carried out by a finite volume method using unstructured meshes and an interface capturing method. Free-surface flow, which is very important in the fields of ship and marine engineering, is numerically simulated for flows of both water and air. Control volumes are used with an arbitrary number of faces and allows a local mesh refinement. The integration is of second order, with a midpoint rule integration and linear interpolation. The method is fully implicit and uses quadratic interpolation. The solution method of pressure-correction type solves sequentially equations of momentum, continuity, conservation, and two-equations turbulence model. Comparison are quantitatively made between the computation and experiment in order to confirm the solution method.
Abstract
To obtain the shape of the free surface more accurately, computations are carried out by a finite volume method using unstructured meshes and an interface capturing method. Free-surface flow, which is very important in the fields of ship and marine engineering, is numerically simulated for flows of both water and air. Control volumes are used with an arbitrary number of faces and allows a local mesh refinement. The integration is of second order, with a midpoint rule integration and linear interpolation. The method is fully implicit and uses quadratic interpolation. The solution method of pressure-correction type solves sequentially equations of momentum, continuity, conservation, and two-equations turbulence model. Comparison are quantitatively made between the computation and experiment in order to confirm the solution method.
참고문헌 (10)
- J. Farmer, "Fast multigrid method for solving incompressible hydrodynamic problems with free surfaces", AIAA J, 32, pp.1175~1182 (1994)
- S. Muzaferija, "of free surface flows using finite volume method and moving grids", Num. Heat Transfer, 32, pp.369~384 (1997)
- F. H. Harlow, "Numerical calculation of time dependent viscous incompressible flow with free surface", Phys. Fluids, 8, pp.2182~2189 (1965)
- C. W. Hirt, "Volume of Fluid (VOF) method for Dynamics of free boundaries", J. Comput. Phys, 39, pp.201~221 (1994)
- T. Kawamura, "Simulation of nonlinear ship flows by density function method", J. Soc, 176, pp.1~10 (1983)
- O. Ubbink, "Numerical prediction of two fluid systems with sharp interfaces", Ph. D., pp.1997
- S. Muzaferija, "Computation of free surface flows using interface-tracking and interface- capturing Methods" (1998), Computational Mechanics Publications
- B. P. Leonard, "Bounded higher order upwind multi dimensional finite volume convection diffusion algolithms", pp.1~57 (1997), Taylor and Francis
- J. H. Duncan, "The breaking and non- breaking wave resistance of a two dimensional hydrofoil", J. Fluid Mech, 126, pp.507~520 (1983)
- H. Schlichting, "Boundary Layer Theory" (1979), Graw-Hill