A continuum method for modeling surface tension
Journal of Computational Physics
A surfactant-conserving volume-of-fluid method for interfacial flows with insoluble surfactant
Journal of Computational Physics
A level-set method for interfacial flows with surfactant
Journal of Computational Physics
A front-tracking method for computation of interfacial flows with soluble surfactants
Journal of Computational Physics
An immersed boundary method for interfacial flows with insoluble surfactant
Journal of Computational Physics
A conservative SPH method for surfactant dynamics
Journal of Computational Physics
A hybrid numerical method for interfacial fluid flow with soluble surfactant
Journal of Computational Physics
A diffuse-interface method for two-phase flows with soluble surfactants
Journal of Computational Physics
Hi-index | 31.45 |
Employing the moving particle semi-implicit (MPS) method, this study proposes a numerical framework of Lagrangian particle method to solve the Navier-Stokes equations for multiphase flows coupled with soluble surfactant transport equations. Each particle carries interfacial and bulk surfactant concentrations, as well as momentum. With a diffuse-interface approximation, the discontinuous of the interfacial surfactant across the interface is replaced by a smooth continuous distribution. The interfacial surfactant transport equation is redefined and solved at all particles in a fluid domain. The discrete form of surfactant dynamics is derived in conservative form, and thus, global mass of surfactant is conserved exactly. An artificial normal diffusion is introduced to prevent interfacial mass from leaking from a fuzzy interface. The suitable normal diffusivity depends on the rate of surface contraction and the size of grid. A criterion to determine the size of grid at a given characteristic speed and length scale is discussed.