Quasi-one-dimensional code for particle-in-cell simulation of magnetic nozzle expansion
نویسندگان
چکیده
The formulation and validation of a novel quasi-one-dimensional particle-in-cell code for the simulation of magnetic nozzles is presented. Quasi-one-dimensional effects are included through virtual displacements of magnetized particles from the axis of symmetry and cross-sectional area variation according to preservation of magnetic flux. A modified, semi-implicit Boris algorithm is developed for capturing the Lorentz force effects in quasi1D. Validation problems are selected to test the components of the code required to model the important physics of magnetic nozzles. Simulations are performed of two stream instabilities, Landau damping, source and collector sheaths, and magnetic mirrors. Results from the validation simulations show that the code produces physically accurate results when compared with both theory and other simulations.
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Quasi-one-dimensional particle-in-cell simulation of magnetic nozzles
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