scholarly journals A variational interface-preserving and conservative phase-field method for the surface tension effect in two-phase flows

2021 ◽  
Vol 433 ◽  
pp. 110166
Author(s):  
Xiaoyu Mao ◽  
Vaibhav Joshi ◽  
Rajeev Jaiman
Keyword(s):  
Surface Tension ◽  
Phase Field ◽  
Field Method ◽  
Phase Field Method ◽  
Surface Tension Effect ◽  
Two Phase Flows ◽  
Two Phase

Application of Interface-Tracking Method Based on Phase-Field Model to Numerical Analysis of Isothermal and Thermal Two-Phase Flows

2007 ◽  
Author(s):  
Naoki Takada
Keyword(s):  
Phase Field ◽  
Density Ratio ◽  
Phase Field Model ◽  
Field Method ◽  
Diffuse Interface ◽  
Phase Field Method ◽  
Navier Stokes ◽  
Interface Tracking ◽  
Two Phase Flows ◽  
Two Phase

For interface-tracking simulation of two-phase flows in various micro-fluidics devices, the applicability of two versions of Navier-Stokes phase-field method (NS-PFM) was examined, combining NS equations for a continuous fluid with a diffuse-interface model based on the van der Waals-Cahn-Hilliard free-energy theory. Through the numerical simulations, the following major findings were obtained: (1) The first version of NS-PFM gives good predictions of interfacial shapes and motions in an incompressible, isothermal two-phase fluid with high density ratio on solid surface with heterogeneous wettability. (2) The second version successfully captures liquid-vapor motions with heat and mass transfer across interfaces in phase change of a non-ideal fluid around the critical point.

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