A New Method to Simulate Free Surface Flows for Viscoelastic Fluid

الملخص EN

Free surface flows arise in a variety of engineering applications.

To predict the dynamic characteristics of such problems, specific numerical methods are required to accurately capture the shape of free surface.

This paper proposed a new method which combined the Arbitrary Lagrangian-Eulerian (ALE) technique with the Finite Volume Method (FVM) to simulate the time-dependent viscoelastic free surface flows.

Based on an open source CFD toolbox called OpenFOAM, we designed an ALE-FVM free surface simulation platform.

In the meantime, the die-swell flow had been investigated with our proposed platform to make a further analysis of free surface phenomenon.

The results validated the correctness and effectiveness of the proposed method for free surface simulation in both Newtonian fluid and viscoelastic fluid.