Changes between Version 7 and Version 8 of theory_Eng


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Timestamp:
Feb 17, 2025, 8:02:31 AM (19 months ago)
Author:
Yifeng Zheng
Comment:

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  • theory_Eng

    v7 v8  
    66== ISSDE Basic Algorithm
    77* Splitting Method
    8 The equations that ISSDE mainly requires to be solved are \\
     8The equations that ISSDE mainly requires to be solved are [[FootNote(Yifeng Zheng et al. 2021 Chin. Phys. B 30 095201)]]\\
    99[[math(\begin{equation}\begin{cases}\frac{\mathrm{d}\mathbf{x}}{\mathrm{d}t} & =\mathbf{v}\ ,\\ \frac{\mathrm{d}\mathbf{v}}{\mathrm{d}t} & =\frac{q}{m}\mathbf{E}+\frac{q}{m}\mathbf{v}\times\mathbf{B}+\mathbf{a}_{c}\ ,\end{cases}\end{equation})]] \\
    1010where [[math(\mathbf{a}_{c})]] is the acceleration caused by the Coulomb collision. According to splitting method, the equation can be regarded as a vector field [[math(\boldsymbol{F}(\boldsymbol{x},\boldsymbol{v}))]] \\
     
    2222[[math(\boldsymbol{G}_h ^2=\boldsymbol{\phi}_{h/2} ^{F_1}\circ \boldsymbol{\phi}_{h/2} ^{F_2} \circ \boldsymbol{\phi}_{h} ^{F_3} \circ \boldsymbol{\phi}_{h/2} ^{F_2} \circ \boldsymbol{\phi}_{h/2} ^{F_1}\ .)]]\\
    2323
    24 * Volumn-preserving algorithm
     24* Volumn-preserving algorithm[[FootNote(Yang He et al. 2015 Phys. Plasma 22 124503)]]
    2525* Quasi-Newton Method
     26
     27[[FootNote]]
     28
    2629== Physical Process Calculated by ISSDE
    2730* Fast ion trajectory