A surface remeshing technique for a Lagrangian description of 3D two-fluid flow problems

• Published in: International journal for numerical methods in fluids Vol. 63; no. 4; pp. 415 - 430
• Main Authors: Cruchaga, Marcela, Celentano, Diego, Breitkopf, Piotr, Villon, Pierre, Rassineux, Alain
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 10.06.2010; Wiley
• Subjects: Computational fluid dynamics; computational fluid mechanics; Computational methods in fluid dynamics; Copyrights; Distortion; Engineering Sciences; Exact sciences and technology; fixed mesh flow formulation; Fluid dynamics; Fundamental areas of phenomenology (including applications); Hydrodynamic waves; Lagrangian interface description; Markers; Mathematical models; moving interfaces; Numerical analysis; Physics; Preserves; surface remeshing; Three dimensional; two-fluid flows; Collapse; Computational fluid dynamics; Digital simulation; two-fluid flows; Liquid column; fixed mesh flow formulation; surface remeshing; Immiscible fluid; moving interfaces; Interfaces; computational fluid mechanics; Three dimensional flow; Free surface flow; Modelling; Lagrangian interface description; Incompressible fluid; Lagrangian method; Mesh generation; Liquid sloshing
• ISSN: 0271-2091; 1097-0363; 1097-0363
• DOI: 10.1002/fld.2073

Classical Lagrangian schemes applied to update the front position between two immiscible incompressible fluids have been long recognized to provide a sharp representation of the interface. However, the main drawback of these approaches is the progressive distortion in the distribution of the markers used to identify the material front. To avoid this problem, a 3D interface remeshing algorithm is proposed in this work. In addition, the remeshed front is enforced to preserve the global volume. These aspects are incorporated in an existing fluid dynamics formulation for the analysis of two‐fluid flows problems. The resulting formulation, called as the 3D‐moving Lagrangian interface remeshing technique, is applied in the numerical analysis of two‐fluid flow problems. Copyright © 2009 John Wiley & Sons, Ltd.