Method and device for simulating meandering river channel migration

The invention discloses a method and device for simulating meandering river channel migration, and the method comprises the steps: smoothly connecting the turning ends of all meandering rings into a curve according to the plane form of a last-stage river channel, and taking the curve with the minimum curvature as an initial river channel center line; according to each meandering ring width of the last-stage river channel and a preset river channel migration frequency, calculating a river channel amplitude added value of each stage; according to the initial riverway center line, the last-stage riverway position and the riverway amplitude added value of each stage, determining the riverway center line of each stage to serve as a direction line of riverway simulation of each stage; and based on the well point data, the direction line of each stage of river channel simulation and the geometric parameters of each stage of river channel form, gradually simulating and generating the migrated meandering river channel