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: http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r139.html
Дата изменения: Mon Feb 10 17:29:37 2014 Дата индексирования: Fri Feb 28 00:32:44 2014 Кодировка: IBM-866 |
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"A modification of the PIC method with adaptive mass: the interaction of
a laser pulse and a plasma" Snytnikova T.V., Dudnikova G.I., Vshivkov V.A. |
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A modification of the PIC method with adaptive mass is proposed. This modification allows one to change the particle number dynamically without breaking the conservation laws. The mass and charge of model particles decrease with an increase of their number in low density domains, whereas the mass and charge increase in high density domains. Such a redistribution allows one to reduce the noise in low density domains using a relatively small number of model particles. The work was supported by the Russian Foundation for Basic Research (projects 11тАУ01тАУ00178, 11тАУ01тАУ00249, 12тАУ01тАУ00234, and 12тАУ07тАУ00065). Keywords: PIC method, Vlasov equation, Maxwell equations, dynamical change of particle number |
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Snytnikova T.V., e-mail: snytav@yahoo.com;
Vshivkov V.A., e-mail: vsh@ssd.sscc.ru
тАУ Institute of Computational Mathematics and Mathematical Geophysics, Siberian Branch of Russian Academy of Sciences;
prospekt Akademika Lavrentjeva 6, Novosibirsk, 630090, Russia;
Dudnikova G.I., e-mail: gdudnikova@gmail.com тАУ Institute of Computing Technologies, Siberian Branch of Russian Academy of Sciences; prospekt Akademika Lavrentjeva 6, Novosibirsk, 630090, Russia |