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An approximation algorithm for the treatment of sound points in the CABARET scheme
Author(s) -
V. M. Goloviznin,
A.V. Solovjev,
Vasily Isakov
Publication year - 2016
Publication title -
vyčislitelʹnye metody i programmirovanie
Language(s) - English
Resource type - Journals
eISSN - 1726-3522
pISSN - 0507-5386
DOI - 10.26089/nummet.v17r215
Subject(s) - scheme (mathematics) , nonlinear system , resolution (logic) , mathematics , boundary (topology) , sound (geography) , differential (mechanical device) , algorithm , mathematical analysis , boundary layer , computer science , acoustics , physics , mechanics , quantum mechanics , artificial intelligence , thermodynamics
Описана новая вычислительная технология расчета потоковых переменных на новом временном слое в разностных схемах типа Кабаре для численного решения квазилинейных гиперболических уравнений в частных производных. Новая технология позволяет единообразно рассматривать все случаи возникновения звуковых точек и не нарушает свойства временной обратимости разностных схем при отсутствии нелинейной коррекции потоков. A new numerical approach to the calculation of flux variables on a new time layer in the CABARET (Compact Accurately Boundary Adjusting-REsolution Technique) scheme for the numerical solution of quasilinear hyperbolic differential equations is described. This approach allows one to uniformly treat all cases of sound points and does not violate the time reversibility properties of difference schemes in the absence of nonlinear correction of fluxes.

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