See this Code Ocean capsule for a running example.
Formely HP-HEM (High Performance implementation of the Hybrid Electromagnetic Model and its variants), but we changed the name to TAGS (Transient Analysis of Grounding Systems) to avoid any confusion with Hewlett-Packard Company.
The documentation of the code can be read at https://pedrohnv.github.io/transient-analysis-grounding-systems
The Hybrid Electromagnetic Model can be used to simulate any situation where the thin wire hypothesis is valid. See [1] for the mathematical formulation.
[1] VISACRO, S.; SOARES, A. HEM: A model for simulation of lightning-related engineering problems. IEEE Transactions on power delivery, v. 20, n. 2, p. 1206-1208, 2005.
Cite the current release:
The permanent DOI is https://doi.org/10.5281/zenodo.2644010, which always resolves to the last release.
There is a pure Julia version for those who don't want to use C: https://github.com/pedrohnv/transient-analysis-grounding-systems-julia
There is also an interface to use a dynamic library from Julia (outdated, but it is a starting point): https://github.com/pedrohnv/hp_hem_julia
The examples folder contains various C files which reproduce results published in the technical literature. Use them as starting point to build your own cases in pure C if you want maximum performance. Examples of use from other programming languages are in their respective repository.
Dependencies: