DOI: 10.36347/sjet

Pages: 544-549

This article elaborately introduced the theory and actuality of city flood. It clarifies the process of rectified model: diffusion coefficient function instead of using ground elevation function, rainfall integrated functions formation permeability function and drainage function function terms. Then it chooses finite-different method to solve convectiondiffusion equations. It applied to this model. Classical optimal inversion method-Best Motion method is used, constructed arithmetic for the related parameter of equation. Apparently, this model could exactly describe city flood. Inverse identification is feasible in the process of simulation