NanoComp / meep
free finite-difference time-domain (FDTD) software for electromagnetic simulations
NanoComp / meep
gprMax / gprMax
gprMax is open source software that simulates electromagnetic wave propagation using the Finite-Difference Time-Domain Finite-Difference (FDTD) code for numerical modelling of Ground Penetrating Radar (GPR), antennas, radar and bioelectromagnetics
devitocodes / devito
DSL and compiler framework for automated finite-differences and stencil computation
mumax / 3
GPU-accelerated micromagnetic simulator