.png){kind=icon}
.png){kind=icon}
Return
A novel phase-field/immersed-boundary algorithm for two-phase fluid-structure interaction simulation
.png){kind=icon}
PRE
AI
DOI：10.1063/5.0266104.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Accurate simulation of multiphase fluid-structure interaction with large density ratios is challenging on non-staggered grids due to spurious pressure oscillations. To address this issue, we present a novel and efficient pressure-oscillation-free projection algorithm, which decouples the incompressible Navier-Stokes equations using an improved incremental pressure correction scheme. The fluid-fluid interface is captured using the Cahn-Hilliard equation, with surface tension forces accurately modeled by a momentum-weighted interpolation scheme that eliminates pressure oscillations. The interaction between fluid and structure is handled through an implicit Eulerian-Lagrangian framework. The validation of the method includes systematic comparisons with established benchmarks such as lid-driven cavity flows and droplet deformations, demonstrating the algorithm's robustness and precision. Additionally, we present a case study of a rising bubble navigating an obstacle, illustrating the method's capability in dynamic fluid-structure interactions. The results confirm that the proposed algorithm not only reduces pressure oscillations but also enhances the accuracy of multiphase simulations.
Keywords:
SURFACE-TENSION
EFFICIENT IMPLEMENTATION
INCOMPRESSIBLE-FLOW
PROJECTION METHOD
VOLUME
BUBBLE
MODEL
VOF
EQUATIONS
DYNAMICS
Journal
IF:
4.3
Papers:
2.9W
Citations:
8.0W
Organization
No organization information available