Numerical investigation of mixing efficiency in Janus micro-mixer using lattice Boltzmann method

Droplet micro-mixing is a critical aspect limiting the accuracy of chemical analysis and quality drug screening, requiring efficient mixing target concentrations in limited volume. In this paper, ternary dilute solute lattice Boltzmann model used to study processes mechanisms solutes inside Janus droplets. The influence three factors including droplet velocity, tilt angle volume ratio on efficiency examined. results show that there main circulation “dead zone” droplet. With increasing both intensity occupied increase, which make increase. At different angles, difference strength internal flow field makes “windward part” greater than “leeward part.” When keeping r-phase constant g-phase, diffusion distance shortened reduced. competes with reinforcing effect field, finally shows tendency larger r: g, faster mix complete. will provide theoretical support for further improvement micro-mixer efficiency.