Numerical simulation method for temperature change of casting blank in continuous casting process

The invention discloses a numerical simulation method for temperature change of a casting blank in a continuous casting process, relates to the technical field of steel production, and solves the technical problem of complicated calculation of a traditional method. The method comprises the following steps: establishing a three-dimensional model of the casting blank, slicing the three-dimensional model, and establishing a two-dimensional model of slices; performing grid division on the two-dimensional model; establishing a two-dimensional heat transfer model of the casting blank according to the Fourier law and the energy conservation law; respectively determining boundary conditions of the crystallizer, the secondary cooling area and the air cooling area; respectively substituting the boundary conditions of the crystallizer, the secondary cooling area and the air cooling area into the two-dimensional heat transfer model to obtain a crystallizer heat transfer model, a secondary cooling area heat transfer model