  We present a novel phase-field approach for investigating solute segregation
in a moving grain boundary. In our model, the correct choice of various
parameters can control the solute-grain boundary interaction potential,
resulting in various segregation profiles that agree with Cahn solute drag
theory. Furthermore, we explore how different segregation profiles evolve at
varying GB velocities owing to the inequality of the atomic flux of solute
between the front and back faces of the moving grain boundary. We highlight
velocity variations among segregation profiles in low and high-velocity
regimes. This model reveals how grain boundary segregation affects grain
growth, providing insights for future alloy design
