摘要：In this work an improved moving lagrangian interface technique applied to update the front position between two fluids is presented. The main drawback of classical lagrangian schemes is the progressive distortion in the distribution of the markers used to identify the material front. To avoid this problem a redefinition of markers obtained using a diffuse approximation technique is proposed. The remeshing algorithm imbedded in the computational fluid dynamics code is described. Aspects of the capabilities of the proposed formulation are evaluated in a simple test: the filling of a step mould.
