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A new VOF-based numerical scheme for the simulation of fluid flow with free surface. II. Application to the cavity filling and sloshing problems. (English) Zbl 1143.76537
Summary: Finite element analysis of fluid flow with moving free surface has been performed in 2-D and 3-D. The new VOF-based numerical algorithm that has been proposed by the present authors [Part I, ibid. 765–790 (2003; Zbl 1143.76536)] was applied to several 2-D and 3-D free surface flow problems. The proposed free surface tracking scheme is based on two numerical tools; the orientation vector to represent the free surface orientation in each cell and the baby-cell to determine the fluid volume flux at each cell boundary. The proposed numerical algorithm has been applied to 2-D and 3-D cavity filling and sloshing problems in order to demonstrate the versatility and effectiveness of the scheme. The proposed numerical algorithm resolved successfully the free surfaces interacting with each other. The simulated results demonstrated applicability of the proposed numerical algorithm to the practical problems of large free surface motion. It has been also demonstrated that the proposed free surface tracking scheme can be easily implemented in any irregular non-uniform grid systems and can be extended to 3-D free surface flow problems without additional efforts.

MSC:
76M25 Other numerical methods (fluid mechanics) (MSC2010)
76M10 Finite element methods applied to problems in fluid mechanics
76D05 Navier-Stokes equations for incompressible viscous fluids
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