Explicit Runge-Kutta integrator with Hamiltonian correction for long-time simulations of guiding-center orbit in tokamak configurations
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031 (China)
- Department of Modern Physics, University of Science and Technology of China, Hefei, 230026 (China)
Hamiltonian correction method is proposed to improve the variable time-step fourth-order Runge-Kutta methods in computing guiding-center orbits in a tokamak. It is found that the new method can significantly improve the computation efficiency of the conventional Runge-Kutta method in simulation of the long-time behavior of the guiding-center orbits.
- OSTI ID:
- 21259725
- Journal Information:
- Physics of Plasmas, Vol. 15, Issue 12; Other Information: DOI: 10.1063/1.2999538; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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