Level-set simulations of soluble surfactant driven flows

JOURNAL OF COMPUTATIONAL PHYSICS

卷:348

Article

de langavant, Charles Cleret¹  Guittet, Arthur¹  Theillard, Maxime³  Temprano-Coleto, Fernando¹  Gibou, Frederic^1,2 

[1] Univ Calif Santa Barbara, Dept Mech Engn, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Comp Sci, Santa Barbara, CA 93106 USA

[3] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA

关键词: Navier-Stokes;    Incompressible;    Soluble surfactants;    Surfactant driven flows;    Marangoni forces;    Quad/Octrees;    Adaptive mesh refinement;    Stable projection method;   

DOI  :  10.1016/j.jcp.2017.07.003

来源: Elsevier

【 摘 要 】

We present an approach to simulate the diffusion, advection and adsorption-desorption of a material quantity defined on an interface in two and three spatial dimensions. We use a level-set approach to capture the interface motion and a Quad/Octree data structure to efficiently solve the equations describing the underlying physics. Coupling with a Navier-Stokes solver enables the study of the effect of soluble surfactants that locally modify the parameters of surface tension on different types of flows. The method is tested on several benchmarks and applied to three typical examples of flows in the presence of surfactant: a bubble in a shear flow, the well-known phenomenon of tears of wine, and the Landau-Levich coating problem. (C) 2017 Elsevier Inc. All rights reserved.

【 授权许可】

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