Innovative Application of the Born-Approximation for Analyzing Medium Motion Effects in Comsol Time Explicit Emw Module

This article presents an algorithm for integrating a previously developed methodology into the COMSOL Time Explicit EMW Module. The Born Approximations were applied to analyze medium motion effects, equivalent to weak bianisotropy. These effects are challenging to calculate precisely due to their low magnitude relative to computational noise in classical approaches. Integration into CAD enables broader and more effective application. Validation is provided for a 2.5 D problem of axial motion of a circular cylinder, demonstrating excellent agreement with the results.