Pairwise Droplet Deformation in Complex Geometries: Effects of VariousParameters Using Lattice Boltzmann Free Energy Method

This study investigates the deformation and interaction of pairwise droplets in complex geometrieswithin multiphase flows using the Free Energy Lattice Boltzmann Method (LBM) combined withimage processing techniques. The effects of various parameters such as Capillary number (Ca),viscosity ratio, droplet size, geometry, Reynolds number (Re), and droplet distance are examined.The analysis employs computational fluid dynamics (CFD) techniques to simulate the behavior ofdroplets under different conditions. Key findings reveal that the Capillary number has the mostsignificant impact on droplet deformation, followed by viscosity ratio. Additionally, the leaderdroplet exhibits different deformation characteristics compared to the follower droplet. These insightsare crucial for optimizing processes involving droplet dynamics.

کلیدواژه ها:

Rheology ، Lattice Boltzmann method ، Free energy method ، Multiphase flow ، Dropletmicrofluidics ، Computational fluid dynamics