A Nonconformal Multidomain Multisolver Method for the Analysis of Electromagnetic Properties of Objects

In this article, we propose a nonconformal multidomain and multisolver method (MDMSM) to solve the problem of time-consuming repetitive modeling of radiation and scattering in complex multiscale models. The MDMSM is a hybrid method based on the domain decomposition framework, which is compatible with the embedded finite element domain decomposition method (FEM-DDM), non-overlapping FEM-DDM, and the boundary element domain decomposition method (BEM-DDM). This method can flexibly select the appropriate partition and calculation methods for various solution scenarios. The subdomain solution is calculated by choosing the most suitable decomposition methods (DDMs) for sub-coupling calculations, and different transmission conditions are used for calculations between different subdomains. In multicase scene calculations, we propose a superimposed inheritance calculation method to save calculation time further. We apply this method to simulate the embedded antenna array structure in complex multiscale aircraft targets and prove its practicability and effectiveness.