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  • 1
    Publication Date: 2014-03-01
    Description: Results of the first validation of large guide field, B g / δ B 0 ≫ 1 , gyrokinetic simulations of magnetic reconnection at a fusion and solar corona relevant β i = 0.01 and solar wind relevant β i = 1 are presented, where δ B 0 is the reconnecting field. Particle-in-cell (PIC) simulations scan a wide range of guide magnetic field strength to test for convergence to the gyrokinetic limit. The gyrokinetic simulations display a high degree of morphological symmetry, to which the PIC simulations converge when β i B g / δ B 0 ≳ 1 and B g / δ B 0 ≫ 1 . In the regime of convergence, the reconnection rate, relative energy conversion, and overall magnitudes are found to match well between the PIC and gyrokinetic simulations, implying that gyrokinetics is capable of making accurate predictions well outside its regime of formal applicability. These results imply that in the large guide field limit many quantities resulting from the nonlinear evolution of reconnection scale linearly with the guide field.
    Print ISSN: 1070-664X
    Electronic ISSN: 1089-7674
    Topics: Physics
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