Coupling between FDTD electromagnetic and FEM CFD software packages for simulation of microwave heating

The coupling of the FDTD electromagnetic software with built-in commercial (HFM) and open source (ELMER) thermal codes is used to simulate the process of heating in household microwave ovens. The commercial code is based on the finite difference time domain method (FDTD), while the open source code utilises the finite element method (FEM). For the two combinations of the solvers, a comparison of temperature patterns over the surface of the cuboidal beef object placed inside the oven after 60 seconds of heating is made.