Abstract
Growing computational capabilities and simulation tools based on high-order methods allow the simulation of complex shaped plasma devices including the entire nonlinear dynamics of the Maxwell-Vlasov system. Such simulations model the particle-field-interactions of a non-neutral plasma without significant simplifications. Thereby, new insights into physics on a level of detail that has never been available before provide new design implications and a better understanding of the overall physics. We present a high-order discontinuous Galerkin method based Particle-In-Cell code for unstructured grids in a parallelization framework allowing for large scale applications on HPC clusters. We simulate the geometrically complex resonant cavity of the 170 GHz gyrotron aimed for plasma resonance heating of the fusion reactor ITER and we demonstrate that a highly efficient parallelization is a crucial requirement to simulate such a complex large-scale device.
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Notes
- 1.
Macro particle factor (MPF), i.e. numbers of real particles per simulated particle.
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Acknowledgements
We gratefully acknowledge the Deutsche Forschungsgemeinschaft (DFG) for funding within the project “Numerical Modeling and Simulation of Highly Rarefied Plasma Flows”. T. Stindl wishes to thank the Landesgraduiertenförderung Baden-Württemberg and the Erich-Becker-Stiftung, Germany, for their financial support. Computational resources have been provided by the Bundes-Höchstleistungsrechenzentrum Stuttgart (HLRS).
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Neudorfer, J. et al. (2013). Efficient Parallelization of a Three-Dimensional High-Order Particle-in-Cell Method Applied to Gyrotron Resonator Simulations. In: Nagel, W., Kröner, D., Resch, M. (eds) High Performance Computing in Science and Engineering ‘12. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33374-3_42
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DOI: https://doi.org/10.1007/978-3-642-33374-3_42
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