Coupling method for one-dimensional hydrodynamic model and two-dimensional hydrodynamic model

The invention relates to the technical field of hydrodynamic simulation, in particular to a coupling method for a one-dimensional hydrodynamic model and a two-dimensional hydrodynamic model, which comprises the following steps: S1, model preparation: determining a coupling area; s2, dividing a coupling region: dividing the coupling region into a plurality of grid units; s3, a self-adaptive boundary adjustment algorithm: dynamically adjusting a boundary position by using the self-adaptive boundary adjustment algorithm; s4, self-adaptive grid optimization: dynamically adjusting the scale and the distribution density of grid units; s5, calculation of coupling parameters: repeatedly calculating the coupling parameters; s6, synchronization of time stepping: carrying out data exchange and correction in the coupling area; and S7, result output and analysis: outputting calculation results of the coupled one-dimensional hydrodynamic model and two-dimensional hydrodynamic model. According to the method, the instability