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Математическое моделирование электрических полей в электрофизических установках

Authors: Baydin, G. V.; Kuropatenko, V. F.; Lupanov, I. V.;

Математическое моделирование электрических полей в электрофизических установках

Abstract

B математическом моделировании непрерывные функции заменяются табличными, а дифференциальные уравнения аппроксимируются разностными уравнениями. Необходимость одинакового ограничения погрешности аппроксимации во всей области отыскания решения требует измельчения шагов сетки в областях с большими значениями производных. Кроме того, в области отыскания решения могут находиться разномасштабные важные детали, что приводит к необходимости использования неоднородных сеток с сильно различающимися размерами сеточных ячеек. В данной работе исследуются решения задачи электростатики, получаемые по оригинальной разностной схеме на адаптивных сетках. Особое внимание обращается на поведение погрешности аппроксимации при переходе от равномерной сетки к неравномерной. In mathematical modelling the continuous functions are substituted by tabular ones and the differential equations are approximated by finite differences. The need of similar restriction for approximation accuracy in the whole process of finding a solution demands the cell size refining in the place of high derivatives. In addition the different scaled important details may need using the non-uniform meshes with strongly different size of cells. This paper is devoted to solution of electrostatic tasks by means of original difference scheme at adaptive meshes. The specific attention is pointed to the approximation accuracy behavior at mesh transition from steady to non-uniform. Григорий Васильевич Байдин, Российский федеральный ядерный центр – ВНИИ технической физики им. акад. Е.И. Забабахина (г. Снежинск, Челябинской обл., Российская Федерация), g.v.baidin@vniitf.ru. Валентин Федорович Куропатенко, доктор физико-математических наук, профессор, Российский Федеральный Ядерный Центр – ВНИИ технической физики им. академ. Е.И. Забабахина (г. Снежинск, Челябинской обл., Российская Федерация), v.f.kuropatenko@rambler.ru. Илья Викторович Лупанов, Российский федеральный ядерный центр – ВНИИ технической физики им. академ. Е.И. Забабахина (г. Снежинск, Челябинской обл., Российская Федерация), bkmz_ 2010@mail.ru. G.V. Baydin, Russian Research Institute of Technical Physics, Academician E.I. Zababakhin, Snezhinsk, Russian Federation, g.v.baidin@vniitf.ru, V . F . Kuropatenko, Russian Research Institute of Technical Physics, Academician E.I. Zababakhin, Snezhinsk, Russian Federation, v.f.kuropatenko@rambler.ru, I . V . Lupanov, Russian Research Institute of Technical Physics, Academician E.I. Zababakhin, Snezhinsk, Russian Federation, bkmz_ 2010@mail.ru

Country
Russian Federation
Keywords

Laplas equation, electrophysic facility, ГРНТИ 27.47, уравнение Лапласа, аппроксимация, convergency, адаптивно-встраиваемая сетка, сходимость, adaptive mesh refinement, электрофизическая установка, УДК 519.711.3, approximation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green