EMA3D
Software

EMA3D is a powerful 3D numerical solution of Maxwell’s curl equations based on the time-domain finite-difference method in rectangular coordinates. The code has application to nearly any EM coupling, radiating, or interaction problem.

EMA3D: Full-wave EM Solver

F16 Animation

Finite-Difference Time-Domain Simulation Perfected
EMA3D is a powerful 3D numerical solution of Maxwell’s curl equations based on the time-domain finite-difference method in rectangular coordinates. The code has application to nearly any EM coupling, radiating, or interaction problem. EMA3D’s FDTD approach is the only EM tool capable of capturing the detail of entire aerospace or ground systems down to individual electronics interfaces in a computationally accessible manner. Computational advances and parallelization allow for fidelity once only dreamed possible.

747 Simulation

EMA3D Capabilities
EMA3D includes all modern features that one would expect in a state-of-the-art solver along with some that are unique to EMA3D. This includes the ability to model thin wires, thin gaps, and thin surfaces that are smaller than the computational mesh size. Frequency dependent and anisotropic EM parameters are allowed. Also, there are a variety of boundary conditions, sources, and variable mesh sizes available. EMA3D has a sophisticated air conductivity model that considers the plasma fluid nature of air in high electric fields.

Carbon Fiber Model

EMA3Dp: Parallel Solver for Computational Clusters
A great deal of analysis can be performed on modern workstations and desktops. However, high-fidelity simulation of complex aerospace vehicles in computationally challenging regimes such as lightning simulation can be aided by parallel processing capabilities. EMA has a parallel version of our solver that can be run on computational clusters. The code scales to large numbers of processors extremely efficiently and has provided for large decreases in the computation time requirements of large models.

Comanche Model

EMA3D Version 4.0 Enhancements
The most recent version of EMA3D expands simulation capabilities. Now, double precision arithmetic is possible. The permittivity of materials can be increased as the computation proceeds in order to capture quasi-magnetostatic conditions at the end of very long simulations, such as lightning attachment. Box-in/box-out probe and source algorithms allow for high-fidelity sub-models for arbitrarily fine detail in simulations. Significantly, there is now tight integration with MHARNESS, the transmission line solver capable of determining individual interface transients. A new voltage difference probe and regional field probe reduces analyst time requirements. Finally, slice probes and far field probes have been updated. Radiation and antenna pattern probes can be used to visual more information easily.

Click here for current release information including system requirements.