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April 17, 2026Physics of Fluids

A modified pseudopotential lattice Boltzmann model incorporating mutual diffusion effects for multiphase flow simulation

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Authors

YLYunlong LiuDSDongke SunMHMengdan Hu

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Overview

This model improves interfacial dynamics in multiphase flow, indicating better simulation capabilities for complex systems.

Key Points

  • The research aims to present an enhanced lattice Boltzmann model for multiphase flows that incorporates mutual diffusion effects.
  • Developed a modified pseudopotential lattice Boltzmann model.
  • Incorporated mutual diffusion to control surface tension and density ratio independently.
  • Tested model performance in scenarios such as droplet sliding and porous media displacement.
  • Demonstrated smoother density and pressure distributions at fluid interfaces.
  • Reduced spurious velocities compared to traditional models.
  • Effectively captured phenomena like capillary fingering and viscous flow patterns.

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/69e1ce605cdc762e9d85766fhttps://doi.org/10.1063/5.0320934
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