Numerical Simulation Of Surfactant Droplet Motion In Extension Flow

In this thesis, Our study the numerical simulation of surfactant droplet motionin extension flow.This we introduce a numerical method for a solution to this problem-the level set method of continuous surface force.Level set continuous surface force method proposed is used to solve the two-phase flow problems with insoluble surfactant.Interfacial transport and interfacialjump conditions are treated using the level-set method and the discrete Dirac func-tion.Based on the density weighted projection method, use a stable semi-implicitscheme to solve the regularization of the Navier-Stokes equations.LS-CSF methodfor computing is well in two-dimensional, it can be calculated that a wide range offluid viscosity ratio and density ratio.This is a good solution to the topology of the image to obtain a wide range ofapplications. Such as Caselles use level set method to achieve image cutting;Chan-Vese image segmentation model and conclusions are given in the literature [1];Somescholars put the level set method applied to medicine,For example, the electronicmap shape jump and image restoration.Some scholars put the level set method isused in image deionising.Finally,in the numerical simulation to simulate the deformation of a droplet.Simulationson two drop interaction shows that surfactant can play a critical role in preventingdrop coalescence.In the3D multi-point surfactant droplet interaction simulation hasbeen proved...