We have implemented an axisymmetric fluid model of streamers in the AMReX open-source library. Our implementation is based on the first-order fluid model with a local field approximation. Photoionization is implemented by employing the Zhelenznyak’s model using the Helmholtz approach. We have verified our code in standard conditions by comparing our results for positive streamers in air with the existing benchmarks from the literature. To verify the performance of our code in strongly attaching gases, we compare the properties of negative streamers with those obtained from the Afivo-streamer open-source code. Calculations have been performed in mixtures of carbon dioxide and perfluoro-nitrile with a background number density of electrons and positive ions of 1013 m−3. We found an excellent agreement between the two sets of results, which indicates the numerical integrity of our code.

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doi.org/10.1088/1361-6595/ad6fce
Plasma Sources Science and Technology
Centrum Wiskunde & Informatica, Amsterdam (CWI), The Netherlands

Simonovic, I., Bosnjakovic, D., Teunissen, J., & Dujko, S. (2024). Axisymmetric fluid streamer model in the AMReX library. Plasma Sources Science and Technology, 33(8). doi:10.1088/1361-6595/ad6fce