An Improved Sharp Interface Method for Viscoelastic and Viscous Two-Phase Flows

We introduce a robust method for computing viscous and viscoelastic two-phase bubble and drop motions. Our method utilizes a coupled level-set and volume-of-fluid technique for updating and representing the air-water interface. Our method introduces a novel approach for treating the viscous coupling terms at the air-water interface; these improvements result in improved stability for computing two-phase bubble formation solutions. We also present an improved, "positive-preserving" discretization technique for updating the configuration tensor for viscoelastic flows, in the context of computing two-phase bubble and drop motion. Keywords Level-set method

• Type: Journal
• Year: 2008
• Where: JSCIC
• Authors: P. A. Stewart, N. Lay, Mark Sussman, Mitsuhiro Ohta
• Keywords: Air-water Interface, JSCIC 2008, Two-phase Bubble, Viscoelastic Two-phase Bubble