Multi-medium dynamic interaction simulation method and device, equipment and medium

The embodiment of the invention discloses a multi-medium dynamic interaction simulation method and device, equipment and a medium, and relates to the technical field of computer-aided engineering. The method comprises the following steps: performing simulation initialization aiming at a target engineering problem, and determining an initial multi-medium interface; according to the requirements of a Lagrange-remapping method, converting the control equation into a Lagrange form equation and a convection equation; dividing the target engineering problem into a plurality of one-dimensional problems; sequentially solving the Lagrange form equation and the convection equation corresponding to each one-dimensional problem according to a dimension staggered execution sequence; and after all the one-dimensional problems are solved, capturing the multi-medium interface. According to the embodiment of the invention, the multi-medium dynamic interaction process under the strong dynamic load condition can be accurately s