We present a computational approach based on the Volume-of-Fluid (VOF) method for simulating the influence of a soluble surfactant on the behavior of two-phase systems with deformable interface. Our approach is applicable to diffusion controlled processes, where the relation between the area-specific excess surfactant concentration on the interface and the volume-specific concentration adjacent...

Stress Methods for Three-Dimensional Flows. J Comput Phys 152:423–456 4. Hirt CW, Nichols BD (1981) Volume of Fluid (VOF) Method for the Dynamics of Free Boundaries. J Comput Phys 39:201–225 5. Jamet D, Torres D, Brackbill JU (2002) On the theory and computation of surface tension: The elimination of parasitic currents through energy conservation in the second-gradient method. J Comput Phys 182...

This paper proposes a comparison of four popular interface capturing methods : the volume fluid (VOF), standard level set (SLS), accurate conservative (ACLS) and coupled (CLSVOF). All are embedded into unified low-Mach framework based on Cartesian-grid finite-volume discretization. includes sharp transport interface, well-balanced surface tension discretization consistent mass momentum which al...

Subcooled flow boiling in multi-microchannels can be used as an efficient thermal management approach in compact electrical devices. Highly subcooled flow boiling of HFE 7100 is studied in two microchannel heat sinks to choose a proper numerical model for simulating boiling flows in microchannels. Results of five different numerical models, including Volume of Fluid (VOF), Eulerian boiling, Eul...

In this research, hydrodynamics of the Bubble Train Flows (BTF) in circular capillaries has been investigated by Direct Numerical Simulation (DNS).The Volume of Fluid Based (VOF) interface tracking method and streamwise direction periodic boundary conditions has been applied. The results show that there exists an appropriate agreement between DNS and experimental correlation results. The re...

The numerical investigation of drop deformation and breakup under simple shear is a basis for theoretical studies of emulsification and mixing. A three-dimensional Couette flow without gravity is considered; the matrix liquid is bounded at the top and bottom by two parallel horizontal plates and the liquid drop is suspended there. The boundaries move horizontally, and generate a simple shear fl...

the liquid metal flow and the solidification behaviours in a multi-cavity casting mould of two automotive cast parts were simulated in three dimensions. the commercial code, flow-3d® was used because it can track the front of the molten metal by a volume of fluid (vof) method and allows complicated parts to be modeled by the fractional area/volume obstacle representation (favor) method. the gre...