Right-angle grid self-adaptive modeling method suitable for grid Boltzmann method

The embodiment of the invention discloses a right-angle grid self-adaptive modeling method suitable for a grid Boltzmann method. The modeling method comprises the following steps: S101, dividing a root grid unit into right-angle sub-grid units to obtain an initial grid comprising an initial object plane grid and an initial flow field grid; S102, performing right-angle grid self-adaptive processingon the initial object plane grid to obtain a final self-adaptive object plane grid, and taking the final self-adaptive object plane grid and the initial flow field grid as an initial calculation grid; S103, solving the flow field by adopting a lattice Boltzmann method based on the current calculation grid to obtain a current flow field calculation result, and obtaining a flow field calculation adaptive parameter based on the current flow field calculation result; S104, judging whether all flow field calculation self-adaptive parameters are smaller than a first set threshold value or not; S105, if so, taking the curre