Journal
PLOS ONE
Volume 11, Issue 5, Pages -Publisher
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0154565
Keywords
-
Categories
Funding
- US National Science Foundation [DMS-1318820, DMS-1522537]
- US Office of Naval Research [N000141110028]
- Natural Science Foundation of China [11571157]
- US NSF [DMS-1318820, DMS-1522537]
- US ONR [N000141110028]
- NSFC [11571157]
- Division Of Mathematical Sciences
- Direct For Mathematical & Physical Scien [1318820, 1522537] Funding Source: National Science Foundation
Ask authors/readers for more resources
Two-phase outflows refer to situations where the interface formed between two immiscible incompressible fluids passes through open portions of the domain boundary. We present several new forms of open boundary conditions for two-phase outflow simulations within the phase field framework, as well as a rotational pressure correction based algorithm for numerically treating these open boundary conditions. Our algorithm gives rise to linear algebraic systems for the velocity and the pressure that involve only constant and time-independent coefficient matrices after discretization, despite the variable density and variable viscosity of the two-phase mixture. By comparing simulation results with theory and the experimental data, we show that the method produces physically accurate results. We also present numerical experiments to demonstrate the long-term stability of the method in situations where large density contrast, large viscosity contrast, and backflows occur at the two-phase open boundaries.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available