摘要：This work presents a numerical method for solving three-dimensional viscoelastic free surface flows governed by the Oldroyd-B constitutive equation. It is an extension to three dimensions of the technique introduced by Tom´e et al.1 The governing equations are solved by a finite difference method on a 3D-staggered grid. Marker particles are employed to describe the fluid providing the visualization and the location of the fluid free surface. As currently implemented, the numerical method presented in this work can simulate three-dimensional free surface flows of an Oldroyd-B fluid. The numerical technique presented in this paper is validated by using an exact solution of the flow of an Oldroyd-B fluid inside a pipe. Numerical simulation of the extrudated swell is given.
其他摘要：This work presents a numerical method for solving three-dimensional viscoelastic free surface flows governed by the Oldroyd-B constitutive equation. It is an extension to three dimensions of the technique introduced by Tom´e et al.1 The governing equations are solved by a finite difference method on a 3D-staggered grid. Marker particles are employed to describe the fluid providing the visualization and the location of the fluid free surface. As currently implemented, the numerical method presented in this work can simulate three-dimensional free surface flows of an Oldroyd-B fluid. The numerical technique presented in this paper is validated by using an exact solution of the flow of an Oldroyd-B fluid inside a pipe. Numerical simulation of the extrudated swell is given.
