The calculation process and numerical results of the IMEX method. (IMAGE)

Tsinghua University Press

The calculation process and numerical results of the IMEX method.

Caption

The IMEX schemes apply the implicit temporal method to only a small portion of the domain and use explicit calculations elsewhere, based on a convenient splitting algorithm. IMEX methods effectively combine the advantages of implicit and explicit methods, such as allowing unrestricted time steps and reducing memory requirements for iterative solutions. These advantages enable the IMEX method to demonstrate outstanding performance in computing unsteady flows, especially for a large number of meshes.

Credit

Chinese Journal of Aeronautics

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