WIT Press


A Finite Element Model For Dynamic Wetting On Flexible Solids Using Arbitrary Lagrangian Eulerian (ALE) Mesh Motion

Price

Free (open access)

Paper DOI

10.2495/MB030101

Volume

36

Pages

10

Published

2003

Size

497 kb

Author(s)

S. Madasu & R. A. Cairncross

Abstract

A finite element model for dynamic wetting on flexible solids using arbitrary Lagrangian Eulerian (ALE) mesh motion S. Madasu & R. A. Cairncross Department of Chemical Engineering, Drexel University, USA Abstract Dynamic Wetting is an important phenomena observed in many industrial applications. Computational techniques for tracking the location of a contact line on rigid solids are well established. A viscous stress singularity can arise at a dynamic contact line due to a double-valued velocity at the contact line in the liquid domain. This viscous stress singularity is often relieved using the Navier slip condition. Tracking the location of a contact line on a flexible solid is more challenging because the substrate deformation changes as the contact line slides across the solid surface. Also, an additional singularity can arise in the elastic stress singularity due to surface tension acting as a line force at the contact line. Arbitrary Lagrangian Eulerian (ALE) mesh motion enables tracking

Keywords