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Vlasov and Drift Kinetic Simulation Methods Based on the Symplectic Integrator
http://hdl.handle.net/10655/2691
http://hdl.handle.net/10655/2691404c74cb-3dbd-4ddf-8c26-22bfadb541e5
名前 / ファイル | ライセンス | アクション |
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NIFS-792.pdf (621.7 kB)
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Item type | 研究報告書 / Research Paper(1) | |||||
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公開日 | 2010-02-05 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Vlasov and Drift Kinetic Simulation Methods Based on the Symplectic Integrator | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Vlasov simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | drift kinetic simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | symplectic integrator | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | simulation method | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
著者 |
Watanabe, T.-H.
× Watanabe, T.-H.× Sugama, H. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Vlasov and drift kinetic simulation methods based on the symplectic integrators are benchmarked for test problems on the linear and nonlinear Landau dampings and the Kelvin-Helmholtz (K-H) instability. The explicit symplectic integrator for the separable Hamiltonian straightforwardly leads to generalization of the splitting scheme for the Vlasov-Poisson system. The Nth-order version improves the total energy conservation decreasing the error as propto Delta t^N where Deltat denotes the time step size. An Eulerian drift kinetic simulation scheme derived from the implicit symplectic integrator for the non-separable Hamiltonian exactly satisfies the conservation of the energy and the enstrophy in the K-H instability, and results in successful application to the plasma echo. | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 2004-02-01 |
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報告書番号 | ||||||
NIFS-792 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |