fnctId=thesis,fnctNo=15
Modeling and simulation of free surface and water entry of bodies
- 링크
- 작성자
- 김동현
- 저자
- Nguyen V-T, Phan T-H, and Park W-G
- 발행사항
- The 5th International Conference on Engineering Mechanics and Automation (ICEMA 5)
- 발행일
- 2019-10-11
- 국문초록
- 영문초록
- The present work is dedicated to modeling and application of numerical approaches for simulation of free surface and water entry of bodies. A preliminary evaluation of numerical models for simulation of complex, free surface, and water impact problems was performed. The dual-time, pseudo-compressibility method is adopted in order to solve the Navier?Stokes equations by using a high-order compact differencing scheme in a vector form. By implementing the combination of the equations and special treatments for the interfaces between phases, e.g., the VOF interface tracking method or interface sharpening method in a generalized curvilinear coordinate system, the proposed model is capable of predicting complex, arbitrary, free surface, and water impact flows in hydraulic and hydrodynamic fields that occur in geometrically complex domains. Several sets of example computations concerning important physical characteristics of complex free surface and water impact flows of structures and the use of Chimera grids and 6DOF motions model confirm that the numerical methods are promising for extensive applications to accurate and efficient simulations of both simple and full 3D free surface, water impact flows in practical problems.
- 일반텍스트
- 첨부파일