Numerical analysis of Marangoni convection in liquid bridge with liquid encapsulation
液封液桥内热毛细对流的数值模拟

The physical and mathematical models of the Marangoni convection in an encapsulated liquid column(or two immiscible coaxial liquid columlis)were established.A numerical simulation of the Marangoni convection in the encapsulated liquid column was performed by using the vorticity-streamfunction method and the alternative direction implicit scheme based on finite difference.The distributions of temperature and flow field in two immiscible coaxial liquid columns are obtained.It is verified that the liquid encapsulation can reduce the Marangoni convection in the encapsulated liquid bridge.Effects of non-dimensional parameters on Marangoni convection are analyzed.